Baseball Betting Systems That Work

Baseball Betting Systems Sports Strategy

Baseball’s long season has a way of grinding bankrolls down that makes it among the toughest sports for bettors. Betting systems use data and a little bit of sports psychology to show potentially profitable situations. But for every excellent MLB betting system out there, I can find a dozen that are totally worthless, at least from the perspective of a sports gambler looking to increase profits.

For example, if you want to win more consistently in baseball, you have to go beyond the “bet against the public” baseball betting strategy.

The baseball betting systems described in this post are tried and true ways to highlight situations where bettors may increase their chances of winning at baseball betting sites.

What’s a Baseball Betting System?

Baseball Betting System

A baseball betting system is a strategy for wagering on baseball games. Some of them are good – meaning they produce consistently profitable win rates. Others are bad – meaning they may look good on paper but don’t lead to a profitable betting system.

A good baseball betting system has three things:

  • A theory underlying the reason the system works.
  • A large sample of real-world data.
  • Consistent results above the break-even point.

Without a data set, you don’t have a system, you just have a theory. Without results above the break-even point consistently (generally meaning across more than one season), you don’t have a system, you have a statistical fluke.

The four baseball betting systems described below have all three features. Learn them, incorporate them into your MLB betting strategies, and you may find yourself coming up with new angles to test out.

Back Bad Teams after a Win

Back Bad Teams After Win

When a team that’s been struggling to win pulls off a W, they’re much more likely to win again in their very next game. This trend is particularly powerful during the sports’ regular season. The psychology behind it is simple – a group of guys with targets on their backs finally get a taste of the good life and they want more.

A “bad team” is a team with a winning percentage under .400. It’s also important to make sure that they won their most recent game by no more than 13 runs. A negative correlation exists between blowout wins of 14 runs or more and a next-game win, so when you’re eyeballing for this trend, be sure to stay within that parameter.

This system hasn’t had a losing season since 2005, producing a profitable winning percentage for nearly two decades. The winning percentage hovers somewhere around 53% depending on the season. Remember that for most of these games you’re getting plus money. That means your break-even point is actually lower than the traditional 52.38%.

A great example of the “win after a win” effect is the Pittsburgh Pirates. Long the league’s worst team overall, the Pirates are 390-353 after wins over the past ten seasons, a winning rate of 52.5%. If you’re backing the Pirates at an average of +130, your break-even point would be 43.5%. Backing the Pirates after a W puts you almost 10% above the break-even.

When Two Winning Teams Meet, Take the Under

Winning Teams Meet Take Under

Let’s start with two obvious facts: teams that score runs win a lot, and bettors like to back winning teams. When two of these teams meet, online sportsbooks inflate their totals, knowing the public money is going to back the over. Let’s face it, baseball fans want lots of runs scored, and they bet accordingly.

When you notice lopsided betting in a game between two winning teams (meaning two teams with winning percentages above .500), back the under.

Since 2005, in games between two teams above .500, the under has won 55% of the time. If you include only games played since 2012, the winning percentage goes up to 58%. This implies that, as scoring in the league has increased, the ability of this system to identify winners has actually improved.

This is nothing more than a specific version of the old “fade the public” adage that gets marched around from time to time. Public money always backs the over, and bookmakers always inflate totals between high-scoring winning teams. The smart move is to take advantage of both of those facts at the same time and back the under.

Wind Blowing In? Take the Under

Wind Blowing In

Wind affects baseball more than weather affects any other sport. Gusts of wind can move balls around, push them out of the outfield and back into play, change their trajectory or angle of exit, and totally mess up what would normally be an easy run or easy out.

If you go back to 2005 and look at every game in which the average wind speed was 5mph or higher and it was blowing in from center field, the under has won 55.5% of the time. This isn’t exactly a rare thing; some 1,450 games have met that description over that period

The trick here is to find a good local weather report for the cities that hold games you want to bet on. Then you have to set a time to check the weather forecast and stick with it. Obviously, forecasts change, and weather can be fickle. I like to wait as long as possible to get the most accurate forecast and (potentially) the best price.

There’s not as strong of a correlation between the wind blowing out and winning. The only meaningful system derived from weather that I’ve ever seen involves that steady (not even necessarily strong) wind blowing in from center field. Not only does it speed up the pitch a little bit, but it also has the effect of limiting the long bomb and setting up lots of easy outfield outs.

Consider a Contrarian Run Line

Consider Contrarian Run Line

In baseball, the run line is always set at 1.5. Some contrarian baseball bettors have uncovered a system whereby they back small market and unpopular teams on a losing streak against a much better team. Since the run line gives the underdog a chance to pay off even if they lose (by no more than a run anyway), bets on these underdogs pay off at a ridiculous rate – 62% since 2005.

I want to point out some ways you can improve that win rate. For starters, if you only consider non-divisional games, you’ll earn a few more percentage points of advantage

I put this down to familiarity. Divisional opponents know one another better than non-divisional. Another way to squeeze more juice from this system is to focus on teams with losing streaks of between 1 and 3 games. The longer a team’s losing streak, the less advantage you get.


It doesn’t present itself that often. Going back to 2005, I can find just 764 games that fit the bill. That’s only about 44 games each regular season. Still, backing the unpopular team on a losing streak wins often enough to be noteworthy. If you do a little extra research, and only back those teams that are getting 25% or less of run line tickets, you have an even more powerful system with a winning percentage close to 70%

Why does it work? MLB’s best teams are overvalued because the betting public likes to back winners. The opposite is true for teams on a losing streak – they’re undervalued because the betting public assumes they’re going to lose since they’ve been losing so much lately. Both are examples of the Gambler’s Fallacy, and both are dangerous ways to bet.

Where To Use These MLB Betting Systems Online?

Baseball is generally a moneyline betting sport. That’s because there isn’t any traditional point spread like in football. However, the existence of the run line gives spread bettors something interesting to wager on. Prop bets, run lines, and game totals are out there, but most MLB betting takes place on the moneyline.

That’s a shame, considering how many successful MLB betting systems use those other less popular forms of betting to produce profitable seasons.

What’s not a shame is the fact that you can try out these baseball betting systems at the top sports betting sites. Our favorite online sportsbook for baseball betting is BetOnline.

This world class sportsbook offers a 50% welcome bonus to first time depositors. Additionally, it also offers reload bonuses and a 100% crypto bonus if you choose this as your banking method.

BetOnline not only has competitive lines for all major and niche sports, but it also has one of the best Live Betting platforms in the entire industry.

When it comes to betting on baseball, this online betting site features MLB lines, prop bets, futures bets and a host of adjusted lines. Furthermore, they also allow bettors to wager on NCAA baseball and most international leagues.

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About the Author
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Rick Rockwell
Sports/Casino Writer
Blog and News
Rick has been a professional writer for over 14 years with an extensive resume spanning projects and clients from around the world. But, his passions have always been sports and sports betting. Whether it’s being a credentialed media member to major sporting events, climbing into a racecar or a pro wrestling ring, Rick’s sports and sports betting knowledge, passion and versatility is on display with each article he writes for TSG.

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