Online MLB Betting Sites

Feel like making baseball bets online from the comfort of your own home? This online MLB betting site guide outlines popular wagering options, what to consider when placing bets, and provides you with welcome bonuses from top bookmakers.

Top Five Online MLB Betting Sites

Many US states have legalized or are in the process of legalizing online sports betting laws. These recent changes have led many baseball bettors to sign up with online sportsbooks to place wagers. Want to join in on the action but don’t know where to start? Check out our choice of the top five online MLB betting sites. To make the cut, each online betting provider has to provide you with (at the very least) the following:

Get expert opinions of the best sites to use for MLB bets before claiming an exclusive welcome bonus. After choosing one that’s perfect for you, click any of the promotion links below to enjoy some free wagers at your new online sportsbook today.


MLB bettors have been using BetOnline to place wagers since 2001. This online MLB betting site has withstood the test of time thanks to being one of the first to have betting apps, in-game wagering options, esports betting markets, and online casino games. As a result, finding that you can use various cryptocurrencies to bet on MLB games was unsurprising. In fact, it even gives you incentives to make payments with crypto. After you’ve signed up with BetOnline, fund your account with Bitcoin, Bitcoin Cash, Cardano, Chainlink, Dogecoin, Ethereum, Litecoin, Ripple, Stellar, Tether, or USD Coin to enjoy generous bonuses. So, if you’re in the market for a pioneering online MLB betting site, BetOnline is a solid option.

Want more info about BetOnline’s services? Check out this in-depth review.


The sheer range of free bet promotions impressed our review team. This sportsbook gives you deposit matches, crypto bonuses, and free wagers for referring your friends. Yet, this online MLB betting site has more to offer you than just bonuses. BetUs gives you competitive odds for many betting markets and an easy-to-use wagering platform fully optimized for iOS and Android mobile devices. What’s more, the site provides you with insightful MLB articles and is launching an MLB show before the start of the preseason.

View our BetUs review to find out more.


Along with being one of the newest online MLB betting sites, MyBookie is also one of the most generous. After you’ve opened your new account, this online sportsbook welcomes you with a 100% deposit match to spend on bets and a 150% match bonus to enjoy playing its casino games. Our review team also found that the MyBookie app makes viewing MLB betting lines, placing bets, converting odds into different systems, playing casino games, and contacting its customer support a piece of cake.

To find out more about MyBookie, view this MyBookie review.


Ok, as you can tell by the site’s logo, this online betting site focuses on providing you with quality NFL wagering options. However, it’s not a one-trick pony. Since launching in 2011, GTBets has become an MLB bettors’ favorite. It’s achieved this by offering unique promotions, a varied selection of baseball prop bets, amazing sign-up offers, and weekly promotions. Another feature that our review team liked was its ‘Favorite Teams Offer.’ When you sign up, the sportsbook gives you the option to select four teams to get improved betting odds when betting on them.

Check out this GTBets review to learn more.


BetNow goes all out to back up its ‘Keep it simple’ motto. Once you’ve finished the rapid sign-up process, you can quickly wager on various MLB betting markets and enjoy live and virtual casino games. This online MLB betting site also has an excellent loyalty points system that rewards you for making bets. Each wager earns you points that you can cash in to place moneyline, parlay, or other MLB bets.

Check out this in-depth BetNow review for more info.

How To Open an Online NFL Betting Site Account

Registering your new account with one of the top online MLB betting sites above is quick and straightforward. Follow the step-by-step guide below to ensure you claim a generous welcome bonus when signing up.

  1. Click one of the top online MLB betting site bonuses above and check the T&Cs of the promotion.
  2. If you like the terms of the deal, agree to them and complete the registration form with your details.
  3. Send the sportsbook a copy of your ID, a paid bill from the last two or three months, and your payment details.
  4. Once the site’s team has checked your information, make a payment to activate your bonus.

How to Place Bets on Major League Baseball

As each Major League Baseball team plays at least 162 games per season before the playoffs and World Series matchups take place, you have plenty of betting opportunities. Learn about the most popular MLB wagering options below.

MLB Moneyline Bets

This betting option is simple, as it only requires you to pick an outright winner of a baseball game. For example, if the Mets (+120) are playing the LA Dodgers (-130), the Dodgers are the favorites, and the Mets are the underdogs. The plus sign (+) next to a team’s odds means it’s the underdog to win, and a minus sign (-) means it is the favorite.

Using the odds outlined above, you’d have a higher potential winning return betting on the Mets. A $100 moneyline bet would give you a potential total return of $220 ($100 initial wager + $120 winnings = $220 total payout). However, if you place the same bet on the Dodgers, you would get a lower return, as they are more likely to win. For a $100 wager, your online MLB betting site would give you a potential return of $176.92 ($100 initial bet + $76.92 = $176.92 total payout).

MLB Runline Bets

Runline bets are baseball’s version of point spread wagers in football or basketball. With this wagering option, your online MLB betting site will offer you an adjusted line that gives the underdog team an advantage in the matchup. A runline bet requires a team to win or lose by a certain margin. For example, a -1.5 runline bet on the Royals means the Yankees have to win by two runs or more for it to produce a winning return. The team with the negative number next to its name on a runline has to win by more than that number for the bet to win, while the team with the plus number has to win or lose by less than that number for that wager to give you a winning return.

Baseball Totals Bets

This MLB wagering option is also known as over/under betting. To place a totals bet, you have to decide whether the total number of runs in the game (scored by both sides) will be over or under the number selected by your sportsbook. For example, if you bet the under set at 10.5 runs on a Mets vs. Dodgers game and the game’s final score is 6-3 (7 runs in total), it would mean that you would win. However, if you had bet the under, you would have lost.

MLB Futures

MLB futures are bets you can place with plenty of time in advance. For example, you can wager on who will be the winner of the MVP Award, which team will win the World Series, how many times a certain team will lose throughout the season, and other outcomes long before they occur.


A parlay is when you combine bets to get more favorable odds. To win a parlay bet, all your predictions must come true. Most online MLB betting sites will let you accumulate up to 12 stakes, including wagers on the moneyline, over/under, or prop bets. The more bets you add to a parlay, the higher the returns – but so is the probability of it not happening.

Prop Bets

Prop bets let you wager on various aspects of Major League Baseball games. You can place them on whether teams or individual players. The most popular prop bets include:

Responsible Gambling

Many online MLB betting sites promote the responsible use of their services. The two fundamentals of responsible gambling are never wager with money that you can’t afford to lose and never treat your betting hobby as a source of income. Along with following these basics, there are other ways you can further ensure your gambling doesn’t cause you any harm.

Budget Tracking

Calculate how much you can afford to gamble before even looking at MLB odds, and record all your losses and winnings. We recommend using a physical ledger or a free online Google Sheet to track your spending.

Open A Dedicated Betting Account

Many bettors open a separate betting account to make tracking your wins and losses easier. We recommend using a digital wallet or account, such as PayPal or Skrill to make controlling your budget less complicated.

Support for Problem Gamblers

Most countries have organizations that can help you overcome a gambling problem. If you’re a US resident and think you have or are developing a gambling problem, contact the NCPG (National Council on Problem Gambling) helpline on 1-800-522-4700. Lines are open 24/7, and all calls are completely confidential.