Most people who want to place bets on sports are fans to begin with. It isn’t unheard of for a gambler to place some sports bets, especially during big games like the Super Bowl or the NCAA basketball Final Four, but for the most part, sports bettors are sports fans looking to use their knowledge of a game or of a game’s players to earn a little extra cash. Being a fan of a particular sport, a team, a college or professional squad—these are all precursors to placing sports bet. Sports betting is also a way for a fan to get in on the action of the game, with something more than self-respect at stake.

• Professional Sports Gamblers
• Becoming A Professional Sports Gambler
• Gambler Billy Walters

Being a fan of a particular sport, a team, a college or professional squad—these are all precursors to placing sports bet. Sports betting is also a way for a fan to get in on the action of the game, with something more than self-respect at stake. All gambling is mathematics, even games of chance. Record Keeping: Show me someone who does not keep records and I will show you a loser. Ego: I've seen this be the downfall of what otherwise may have been a good professional gambler. Until you have won 10 million or more gambling, check the ego at the door. If you have reached this level of success than why the need for the ego.

All gambling is mathematics, even games of chance. If you understand the math behind the game, you understand the game and can give yourself an advantage. For many games, like penny slots or poorly placed roulette bets, are so bad that smart bettors earn their advantage by avoiding them altogether. In sports betting, the math is more complicated. Depending on your favorite sport, you may need to think about things like bye weeks, underdogs, quarterback ratings, and injuries with the same fervor other connoisseurs reserve for fancy winces.

So how difficult is sports betting math? The math behind placing a winning bet is fairly complicated, but the way to stay ahead of the bookmaker is rather straightforward. If you collect on 52.4% of your bets, you’ll break even. We’ll have more details on that number later, including why it takes more than 50% wins to break even, but first some general knowledge about sports gambling and the numbers behind it.

• Home Sports Betting Sports Betting Articles Pros of Being a Professional Sports Gambler. Life As A Professional Sports Gambler: The Pros. People bet on sports for a variety of different reasons. Some do it because they find it makes watching sports even more exciting, while others do it simply because they like the buzz that betting gives them.
• The Life of a Professional Sports Gambler. BetzCenter Blog. The Life of a Professional Sports Gambler. It is the dream of many to turn professional doing something that they love, for me that was the combination of the love of sports with my mathematical and statistical abilities.

Sports Betting Basics

Professional Sports Gamblers

The easiest way to demonstrate the math behind a sports bet is to make up an example. Let’s say you and your buddy walk into a casino, each with $200 burning a hole in your pocket. There’s a big game on tonight, the Cowboys and the Redskins, so you wander into the sportsbook to check up on the latest news about the game. While you’re sitting there, you see the wagering board, with some funny numbers on it. It looks like this:

• 428 Cowboys +175
• 429 Redskins -4 -200 38

Some of this is easy enough to read. The Redskins -4 means the Redskins are favored to win and must do so by at least 5 points for a bet on the ‘Skins to pay out. The next number (-200) is the moneyline, in this case the Redskins are a 2/1 favorite. The last number (38) is the total, the over/under of the expected number of points scored in the game.

More on Placing Sports Bets

Look at that over/under number, in this case 38. If you or your buddy thinks this is going to be a particularly high or low scoring game, based on your knowledge of the team’s offenses and defenses, or information about a hurt player or bad playing conditions, you can place a wager on the total of points scored.

So how is a guy supposed to know how to literally lay down a sports bet? You need to know three things:

#1 – the type of bet you want to make
#2 – the number of the corresponding team you have chosen and
#3 – the amount you wish to wager

Knowing all that beforehand gives the ticket writer the details he needs to write the ticket without having to bend over backwards to process your bet.

Tipping and Sports Betting

We haven’t even gotten to the meat of the sports math yet, and we’re already talking about tipping the staff behind the window? Yep. Here’s why.

If you place two $100 bets, and you win, you’ll collect $440. You should consider leaving a tip around five percent of your winnings. Yes, that’s a $22 tip, but you just made a huge win, and surely you can spring for a twenty-spot for the guy who helped you win it. If you tip around the five percent mark regularly, when you win, you’re way more likely to get free drinks, which is about all you’re going to get comp-wise at the sportsbook.

So, back to the basic math of sports betting. You and your buddy, after much deliberation, decide to each place a $100 bet on your favorite team. What now?

To bet on the Redskins using the point spread, your bet is called “laying the points.” For your bet to pay off, the ‘Skins have to win by five or more to cover the spread. Remember, if the ‘Skins win by exactly four, the game is a push, and both sides recoup their bet. Another alternative is called “taking the points” with the Cowboys. That means the Cowboys have to lose by three or less for your bet to win, or if the Cowboys win outright. So you and your buddy go up to place your $100 bet, and you find out that the standard straight bet at any bookie pays 11/10. That means you have to bet $110 if you want to win $100. You and your buddy pay the bookie $110 and sit down with drinks to watch your bets come in.

These are deceptively simple bets. Deceptively because they make it look like the outcome of the football game is like the outcome of picking marbles out of a bag. Put one black marble and two white marbles in a bag, pull one out at random, and there’s your football game. After all, the odds are the same: 2/1 for white.

But we, as sports fans, know that the mathematics of a sporting event is much more complex. Sports bettors deeply involved in their hobby will subscribe to weather bulletins from major cities that take part in their sport, making huge wagering decisions based on a few mph of wind in one direction or another. Then there’s the unknown—does a player get hurt in the first quarter? Does weather become a factor? Is a particular player “in the zone?”

How Do Bookies Make a Profit?

Just as we finish ruminating on the concept of the difficult math at play in the background of major sporting events, we’re going to turn right back towards the simpler side of sports betting. Bookies make a profit because of vigorish. What’s vigorish?

Look at the above example again. You and your buddy each paid $10 to the bookie to place your bet. That’s what the standard 11/10 odds in sports betting are all about. You bet the Cowboys and your buddy bet the Redskins, a total of $220 bet. The sportsbook has to pay back $210 to the winner, leaving a nice $10 profit no matter what happens on the football field. That $10 built-in profit is called the vigorish, and it’s the final monkey wrench in the gears of sports betting.

Obviously, sportsbooks are going to take more than two bets on any game, but this example is for simplicity’s sake. Looking at the total number of bets on different games over the course of a week and adjusting the moneyline and other numbers is another way the bookie makes a profit. Adjusting the odds a tiny percentage point in either direction will affect the balance of beats and make the book more likely to turn a profit no matter what.

Essentially, a bookie is a person who holds on to money from bettors then pays them if they win and keeps their money if they don’t. That’s what the job is boiled down to its essence.

When a bookie sets odds for games, he will build what bookies call an “over round” into his set of odds. Another slang term used for this formula is “the juice.” For the sake of simplicity, let’s look at a boxing match where both contenders are equally talented, of equal stature, etc. Since they both have an equal chance of winning, a casual bet may be even money. You put $20 on one guy; your friend puts $20 on the other. Whichever fighter wins awards the bettor with the total of $40.

Bookies don’t offer even money like friends in a casual betting situation. In the above example, with two evenly matched boxers, a smart bookie will offer 5/6 odds for each. That way, a $10 winning bet would only return $8.30 plus your stake. What does this do for the bookmaker? He can float an equal amount of money on both fighters, winning no matter which fighter actually wins. If they take $1,000 worth of bets on one boxer and $1,000 on the other, the bookie would take in $1,000 but only have to pay out $830, for a guaranteed $170 profit regardless of the outcome.

Bookies look at the weight of their books all the time and adjust odds and other factors to make sure their books balance. Though it isn’t possible to completely balance a book, bookies that go too far out on one side run the risk of losing money, and losing money in gambling is the fastest way to find yourself in another industry. All of these factors are why bookies generally root for the underdog—too many favorites winning in a sport with a short season (such as the NFL) can cause a bookmaker to lose money, while a bunch of upsets (like you generally see in college football) is a guaranteed profit for the bookmaker.

The short answer here is that bookies making money has nothing at all to do with your betting. It is almost unheard of for a single customer to be allowed to place enough bets to sink a single book all on his own. High rollers in sports betting get special privileges in terms of their maximum bet size, but these privileges often change with the bettor’s luck—maximums get raised after the bettor sees big losses and decreased (sharply) when the bettor starts to get lucky.

In short, a sportsbook’s profits aren’t necessarily impacted directly by the way an individual bet is called. Unlike casino games or slot machines, where it’s you against the house, sports bettors fuel the bookmaker’s business and only rarely is an individual bettor betting against the bookie.

Sports Betting Odds

Remember at the beginning when we talked about the magic number necessary to guarantee a break-even week in sports betting? If you read enough about sports betting, you’ll hear this number repeated often: 52.4%. If a bettor can win 52.4% of his bets, he’ll break even. Where does that number come from?

When betting the spread, you get odds of -110. Sometimes, sportsbooks will offer a -105 line as a promotion or to welcome new business. But for the most part, if you’re betting the spread, you’re getting -110.

We draw that 52.4% break even number right out of the odds. -110 is equivalent to 11/10. That means if you bet 21 games, you’d have to win eleven of them and lose ten of them to break completely even. Even at -105, you’d still have to win an astounding 51.2% of the time just to break even.

If you don’t trust the basic math behind this break-even principle, look at another real-world example. Let’s say you get really into sports betting after your Cowboys cream the Redskins and you go home with a nice fat wallet. You then bet on the next 10 Cowboys games, winning six times and losing four times.

That 60% betting record (with the odds of -110 that is traditional for against the spread bets in football) will leave you with a profit of $160. Think about it—your $600 profit from your 6 winning bets minus the $440 you lost on losing bets leaves $160. It took you $1,100 to win $160, meaning you have to bet $6.87 to win $1 on average. So you see the small differences between a 52.4% winning rate and a 60% winning rate—inside those 7.3 percentage points lies hundreds of dollars in profit.

Now imagine instead that you lost one of those six winning bets, leaving you with a 50% betting record. You spent a total of $1,100, won $500, and lost $550. That means overall your 50% record drained your wallet by $50. That’s where the vigorish will get you. Not even winning half the time is good enough to break even in sports betting.

Professional Sports Bettors

Believe it or not, some people really do bet on sports for a living. Maybe they work part time at a sportsbook or in some other marginal job in the casino industry, but there is a group of gamblers who bet on sports for their life’s work. With all the math swirling around in our heads after the last bit of the article, it’s hard to imagine anyone wanting to do this for a living.

If you know that a 52.4% record will mean you break even, the simplest way to turn sports betting into a career is to bet enough so that a 53% winning record will bring in the kind of money you want to make.

Another example. After your successful Cowboys experiment, you decide to invest $10,000 in sports gambling over the first four months of the following football season. That $10,000 is set aside to win or lose in sportsbooks.

You plan on betting on 160 games during your investment period. You dream of a 55% winning record because your win-loss with a 55% winning record would give you an 88-72 record. That’s an expected profit of +8.8 units. How did we get to that number? To calculate your units, subtract the total of your losses (multiplied by 1.1 to include the vig) from your wins and you’ll get your unit profit.

Becoming A Professional Sports Gambler

Placing $460 bets on each of these games, a number pulled from some quick and dirty math about how much you could afford to bet in a single week’s NFL play without blowing your bankroll, would result in a $4,048 profit if you maintain that 55% winning record. Turning $10,000 into $14,048 in just four months is an investment return of 40.48%. I dare you to ask your bank for that kind of return on your savings account.

But that’s all assuming you can pick the winner 55% of the time. Do your research, look into the records of professional sports gamblers. 55%, while not impossible, would place you among the elite sports bettors in the country, if not the world.

Professional sports bettors have to worry about variance more than any other type of gambler. Working against the forces of variance means managing your bankroll over the course of the season to avoid the negative possibilities that could totally empty your wagering account. Professional sports bettors have the time and resources necessary to calculate these variances, and there are even a few pieces of software out there that can help you figure out your ideal bet in the face of negative variance. But the bottom line is that professional sports bettors would dream of having a 55% winning record, simply because it guarantees you’re beating the house.

Pro bettors make their money on bets that sportsbooks offer that give them even the slightest betting advantage. The key to becoming a profitable sports bettor is being able to find advantages, opportunities where the line a book is offering is vulnerable.

This is why many long-term sports bettors are math freaks. Good sports bettors understand statistics, particularly what are called inferential statistics, though any higher math will help when it comes time to place a bet.

Here is what a professional baseball bettor might do in his head. After looking over statistics from MLB (kept religiously by all sorts of bloggers, data archives, and magazines) between the years 2000-2010, he notices a particular statistic pop out. For example: when the home team starts a left-handed pitcher the day after a loss, that team wins 59% of the time. Good sports bettors can do this sort of math in their head or very quickly on paper. From that bit of information comes a new betting theory—look for game situations that mirror the above example and bet on them. That means he’ll only bet games where the home team starts a left-handed pitcher the day after a loss. Does he just jump in and start betting based on this back of the napkin math? No way. More statistical analysis is required—he may find that this was a fluke for that particular decade and isn’t a trustworthy statistics, or he may find an even more advantageous bet based on his original theory.

Pro sports bettors also keep near-obsessive records of their bets. Obviously, no edge in sports betting lasts longer than a single game. Taking proper records will also help you test theories, like the above one about left-handed pitchers and losses. Without taking good records, no sports bettor’s bankroll will last very long.

What Is a Good Record for Sports Bettors

So, at the end of the day, what could you call a “good” record for a sports bettor? Most casual gamblers looking into sports betting see a pro advertising his 1100-900 record and shake their head a little. How could such an abysmal record be something to be proud of? That’s a 55% winning percentage, and it indicates to those in the know that this bettor is actually turning a profit placing bets on sports.

A good record for a sports bettor is any record equal to or larger than 52.4%, because that number or anything higher means you’re not losing money. A 53% winning record, while not impressive on paper, means you’re actually beating the sportsbook and putting money back in your pocket. Ask your friends that play the slots or play online poker how often they end up putting money back in their pocket.

A -110 wager, standard for spread bets in the NFL, gives the house a built-in advantage of 10%. It means that even if you do win, and you line up to collect your $100, some sucker behind you just spent $10 to hand the casino $100.

A good record for sports bettors is any record that ensures they at least break-even. If you bet 16 games this NFL season and you won 9 and lost 7, you probably made money. And taking money away from a casino is always something to be proud of.

Other Advanced Sports Betting Strategy Articles:
» Future Betting Strategy
» NFL Bye Week Betting Strategy
» Parlay Betting Strategy

Sports Betting Break Even Video:

In the video above I go over the break even % for sports betting, and we take a look at the difference between hitting 52% and 53%. I also quickly show the amounts of profits you can expect if you can hit 55% consistently.

See All Guides

There’s a lot of information on the internet claiming to offer “foolproof” methods to instant sports betting success. Unfortunately, there is no such thing. Becoming a successful sports bettor requires hard work, determination, knowledge, and experience.

Gambler Billy Walters

Part of gaining these necessary skills is to learn which strategies to apply and when to implement them. In this article, we’ve compiled 10 quick betting tips and strategies that will move you towards being a stronger, more successful bettor over time.

Like anything worth doing, achieving a better sports betting winning percentage takes both time and perseverance. Sports betting is not tantamount to gambling, so we advocate betting with skill, measure, and precision. Don’t leave everything up to luck!

1. Manage Your Bankroll and Create a Unit Size

It’s integral that, as a sports bettor, you decide how much money you’re going to dedicate towards betting on sports. Of course, this hinges on your individual financial situation. It’s never wise to bet money that you can’t afford to lose.

Now that you’ve established a pre-ordained bankroll, decide on unit size. We recommend that beginner bettors stake 1-5% of their bankroll on every bet they make.

This is undoubtedly thecrucial first step in becoming a more successful sport better. Every single “sharp” scrutinizes both their bankroll and unit size regularly. For more information, we’ve written a whole guide on sports betting money management.

2. Understand Your Risk Tolerance and Goals as a Bettor

Different types of bettors like to make different bets. The sooner you decide which types of bets you prefer making, the sooner you can perfect your strategy and start winning.

Some people like to bet on significant underdogs or highly improbable events. They’re attracted to the longest of long odds. These are the same bettors who are more inclined to create huge parlays and bet on games like the Browns beating the Patriots on Monday night.

Others have a preference for smaller profits, but more likely outcomes. Betting on heavy favorites and welcoming short odds may not pay out as big, but these bettors are likely to win more often.

Some bettors think strategically, with a long-term view of players or teams. These bettors spend a lot of their time and bankroll in the futures marketplace.

You may bet once a week or stay active in sportsbook live betting, placing many bets every day (or even multiple bets on the same event).

Of course, none of these types of bets are mutually exclusive. Seasoned sharps are highly active in every single kind of wager, no matter whether it’s got long or short odds attached to it.

Focusing on one particular kind of bet is a wise move if you’re looking to improve quickly.

3. Develop Realistic Expectations

A successful “sharp” wins 54% of the time. A historically great “sharp” wins at around a 60% clip. These are the best sports bettors in the entire world.

Wanting to achieve these numbers at the jump or even over an extended period of time is a tall order. We can’t stress this point enough.

Even if you win your first 10 bets (which is not unheard of), the law of averages suggests that unfortunately, you’ll come crashing back to the earth at some point. Knowing this and setting realistic expectations can help prevent you from doing anything rash.

Don’t deviate from the strategy and methods that made you win 10 in a row in the first place.

4. Keep a Record of Your Bets and Review Them Periodically

This strategy might seem unsexy, but it’s nevertheless incredibly important.

It isn’t fun to revisit losses, but if you do, you might prevent yourself from making the same types of mistakes twice. Sometimes, you’ll lose bets even if you’ve done everything right. Other times, you knew you were reaching, but made a bet anyway. Correcting misguided reasoning will benefit your bets in the long run.

An occasional retrospective on your successes and failures will doubtless provide a long-term boost to your bankroll.

5. Bet with Your Head, Not Your Heart

The majority of sports bettors began betting because they were sports fans. As such, they probably had allegiance to one or more teams. If this applies to you, we’d recommend from abstaining on betting on any event related to your favorite team (or teams).

Loyalty can cloud our judgment, and we recommend being rational and measured in your sports betting. Bias can affect us in both conscious and unconscious ways. For this reason, we recommend skipping lines that you have a personal interest or an emotional investment in.

6. Avoid “Sunk Cost Fallacy”

For this tip, we’re going to borrow a standard term from behavioral economics. The “sunk cost fallacy” means that the more time or money one invests in something, that harder it becomes to abandon. This encompasses everything from business investment to a bad relationship.

Decisions are colored and tainted by accumulated emotional attachments related to the investment. People engaging in the “sunk cost fallacy” will throw more money at a project or venture that’s doomed, just because they’ve invested so much time in it already. They simply don’t know when to cut their losses.

This applies to sports betting just as much as it pertains to investments. If you’re having a bad day, cut your losses. And whatever you do, don’t keep upping the size of your bankroll to cover a nasty losing streak.

7. Bet on One Sport

As Warren Buffet says, invest in what you know. The same applies to sports betting.

If you’re new to sports betting, it’s worth it to stick to the one sport you know the most about. You’ll already be ahead in the methods you need to get an edge in over the bookmakers, just based on your pre-existing knowledge of how the game is played.

You’ll already know how to evaluate players and teams, and where to gather information about the sport. This is integral to finding the smartest wagers.

8. Line Shop

Line-shopping is all about taking advantage of pricing discrepancies between the same event at different sportsbooks. Finding the best odds possible is guaranteed to have a significant positive effect on your sports betting ROI.

Line shopping is the closest thing to a foolproof, sure-thing strategy in sports betting. It’s guaranteed to net you bigger profits and long-term success in sports betting. The sooner you start doing it, the better.

We’ve written a full guide on all things line shopping, and why it’s essential.

9. Hedge Your Bets When It’s Appropriate

At its core, hedging is a risk management technique that can be applied to sports betting. It’s a way to either reduce your bankroll exposure or lock in a profit on bets.

Hedging is complicated and beyond the scope of this quick strategy guide, but every hedge you make will be done by betting on a result that’s different than your original wager.

10. Do Your Research and Talk to Other Bettors

In the age of the internet, getting involved in the sports betting community has never been easier. Join sports betting forums, peruse sportsbook-related subreddits, and talk to anyone you know in real life who may be keen on sports betting.

Not only will you become more accustomed to sports betting lingo, but you can also exchange sports betting strategies with your friends.

Patience Is a Virtue

As we’ve mentioned, becoming a successful sports bettor takes time. As you develop more in-depth knowledge and comfort within the sports betting world, you’ll start to see a more significant ROI.

Remember, never become a gambler. Everyone has rough days sports betting, but betting responsibly and sticking to a plan will help you remain successful. Discipline is integral to keeping your cool, having fun, and staying successful.