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How to Bet on Baseball in 2023: Types of MLB Bets You Can Make

SBD Staff Writer

by SBD Staff Writer

Updated Mar 30, 2023 · 8:25 AM PDT

If you’re new to MLB betting, you might find how odds are displayed and what your various betting options are confusing at first blush. We’re here to help you demystify some of the more puzzling parts of MLB betting.

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Wondering how to bet on baseball? We’ve got you covered with MLB baseball betting basics, including what kind of bets you can make and some simple tips to follow.

When you’re betting on the MLB, you’ve got a plethora of options available. These options include straight-up bets on which team will win the game, how much they’ll win by, how many runs will be scored, and other aspects of individual player performances, such as how many strikeouts a pitcher will have in a game.

Read on for a crash course in how to read and bet on MLB lines and the types of bets available on baseball at online sportsbooks!

What Does an MLB Baseball Line Look Like?

First, let’s take a look at how sportsbooks post odds for upcoming baseball games.

The image above shows odds for a Friday game between the Red Sox and Tigers.

There are two listings for the same game. You can discern from the date, time, and teams that all the odds pertain to the same game. The second line here is called an alternate line, which offers sports bettors the chance to bet on a larger point spread with odds updated accordingly. Knowing this is the perfect start to finding out how to bet on MLB games.

Types of Baseball Bets You Can Place

When you’re betting on baseball games, there are four main types of bets you can make: moneyline, run line, totals, and proposition (prop) bets. We’ll dive into each of them below.

Run Line MLB Betting

The word “spread,” located directly below the date/time, indicates that we’re dealing with spread betting. In other words, betting on the spread is when you bet on a team to win the game by a certain number of runs. This is also known as the “Run Line” when betting on baseball games.


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How many runs? It depends on which rectangular box you’re looking at. The top box has a spread of Detroit -1.5/Boston +1.5. The bottom box has a spread of Detroit -4.5/Boston +4.5. The team with the negative number next to its name is the favorite. The team with the positive number is the underdog.

If you bet on Detroit using the odds on the top, the Tigers have to win by two runs or more in order for you to win your bet.

If you bet on Detroit using the odds on the bottom, the Tigers have to win by five runs or more in order for you to win your bet.

If you bet on Boston (using either set of odds), the Red Sox don`t have to win at all in order for you to win your bet.

If you opt for Boston +1.5, then you will win as long as they don’t lose by two runs or more.

“Why would I ever bet on the Tigers using the odds on the bottom?” you might now be thinking. There’s one very good reason: you can win more money. The three-digit number in parentheses after the spread indicates the payout. A positive number indicates how much you will win if you bet $100. A negative number indicates how much you have to bet in order to win $100.

As such, if you bet $100 on the Tigers -1.5 (+170), you stand to win $170 in profit (i.e. you’ll get your original $100 back plus $170 more) if the Tigers win the game by two runs or more. If you bet $100 on the Tigers -4.5 (+550), you stand to win $550 in profit. It’s a lot less likely to happen, but if it does, you’ll be rewarded accordingly.

If you bet on the Red Sox +1.5 (-215), you have to bet $215 in order to win $100.

Baseball Moneyline Betting

Some bettors, especially new ones, don`t want to worry about teams winning (or losing) by a certain number of runs. They just want to focus on who wins the game. That’s an option for MLB betting, too. It’s called the moneyline. Let’s look at another graphic.

The odds in this graphic pertain to a game between the Giants and Padres. There are three sets of odds. We’re dealing with the middle one, the “moneyline.” The first, the “run line,” is the spread discussed above. The last, the “total,” (or the over/under) we’ll come to shortly.

As you can see, both teams have a negative three-digit number next to their name. As with the spread, those three-digit negative numbers indicate how much you have to bet in order to win $100. But, because we’re dealing with the moneyline, you don’t have to worry about run-difference. If you bet on San Francisco -117, you’ll win your bet as long as the Giants win the game. Same for the Padres -103. The difference is that you don’t have to bet as much on the Padres in order to win $100.

MLB Baseball Total (Over/Under) Betting

With some games, you might have a strong feeling that it will be high or low scoring, but don’t feel confident in who will win. Good news, there’s a betting option for these circumstances, too: the total!

Also known as the “over/under,” the total is how many runs are expected to be scored in the game by both teams combined. In the graphic above, the total is 8.5. You can bet on the over or the under. If the game features nine runs or more, the over-bettors win. If the game features eight runs or fewer, the under-bettors win.

Those familiar three-digit numbers pop up here again. The over (indicated by that lower case “o”) is at -115; the under (indicated by that lower case “u”) is at -105. As you already know, since it’s a negative number, it indicates how much you have to bet in order to win $100.

Baseball Prop Bets

Depending on what site you’re using and which game you’re looking at, there could be a slew of other items you can bet on. Time for another image!

This graphic features a slew of props (short for “propositions”) you can bet on for the game, like whether it will go to extra innings, which starting pitcher will have more strikeouts, and which team will score first. The three-digit (sometimes four-digit!) numbers under the “odds” column indicate the payout for each proposition.

If you successfully bet that the game will go to extra innings, you will win $700 on a $100 bet. If you successfully bet that the game will not go to extra innings (a much more likely scenario), you will only win $100 if you wagered $1,250.

First 5 Innings

Again, depending on what sportsbook you’re at, you may have the option to limit any of the bets discussed above to just the first five innings of the game.

In-Game Betting or Live Betting

Have you ever been watching a baseball game and noticed a palpable shift in momentum? Maybe the Yankees just tied the game with a three-run rally in the seventh, and are about to turn the ball over to their excellent bullpen. You might be sitting there thinking, “I wish I could go back in time and bet on the Yankees to win.” Well, you can’t go back in time, but you might still be able to bet on the Yankees to win thanks to in-game betting.


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Live betting is exactly what it sounds like: the best sites for online baseball betting allow you to wager on games that have already started. Canadian baseball fans will soon be able to participate in live betting once online sportsbooks in Canada launch.

The types of bets you can make with live betting will be the same as the ones discussed above. But the odds will shift depending on the score and the stage of the game. You won’t be getting a handsome payout, and the juice (or vig) will be higher when you bet on the Yankees in the seventh inning when they’re up by four runs. Conversely, you can make a pretty penny wagering on comebacks.

Cut-Off Times for Placing Bets

Unless you’re in-game betting, you will need to place your wager by a certain time in order for it to be accepted by the sportsbook. For baseball games, the cut-off time is the opening pitch. But keep in mind that broadcasts can be delayed, and sites can take a minute or two to process wagers. Best practice is to get your bet in at least a few minutes early.

You might be wary about placing a bet too early, fearing that something big will happen to completely alter the outlook. After all, pitchers get scratched shortly before game-time on a regular basis. (You can’t expect those fragile little things to pitch threw a blister!)

You might not have to worry about that, depending on what site you’re using. Many will refund your money/void the bet if one of the listed pitchers doesn’t start. Read the terms, conditions, and rules of all sites carefully before you start betting!

Top MLB Sports Betting Promo Codes

If you’re in the market for the very best MLB sports betting promo codes, look no further than the table below to find the top options in the industry today:

Top MLB Sports Betting Promo Codes Promo Details
Caesars Sportsbook Promo Code $1,250 On Caesars
FanDuel Sportsbook Promo Code $1,000 No Sweat First Bet
DraftKings Sportsbook Promo Code $1,000 Deposit Match + $50 Free Bet
Barstool Sportsbook Promo Code $1,000 First Bet Insurance
BetMGM Sportsbook Promo Code $1,000 First Bet Offer
Bet365 Bonus Code Bet $1, Get $200

Make sure you do your due diligence on each of these individual sportsbooks as they each have unique features that will benefit MLB sports bettors in different ways.

How to Bet On Baseball in 2023

If you’re wondering how to bet on baseball in 2023, you’ve come to the right place. Applying the knowledge you just learned and betting responsibly on all the baseball action is an effective strategy for MLB betting in 2023.

With 162 games in the regular season for each team plus playoffs, betting on baseball in 2023 presents massive wagering opportunities. From opening day right through the dog days of summer, betting on baseball in 2023 effectively is one of the most reliable ways to pad your bankroll.

Betting on MLB moneyline, runline, over/under (totals), prop bets, live betting, and parlays are just some of the ways of how to bet on baseball in 2023. Whether you’re a rookie sports bettor or seasoned sharp, you’ll enjoy MLB baseball betting throughout the calendar year.

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