With the MLB season officially here, top sportsbooks are rolling out some of the best MLB betting promos to help bettors make the most of their MLB bets. MLB futures such as the World Series and Cy Young are a top option for sports bettors. Whether you're backing a World Series favorite like the Los Angeles Dodgers, New York Yankees, or New York Mets or looking to wager on a longshot like the Seattle Mariners or Arizona Diamondbacks, these MLB betting promos provide bonus bets and profit boosts for new sign-ups today.
With more than $3,000 in bonus funds available across the best MLB betting sites, now is the perfect time to capitalize on these exclusive offers for MLB Opening Day and beyond. Don't miss out on these MLB betting promos as the race for a World Series title begins.
The Best MLB Betting Promos for March 2025
|
⚾ Top MLB Betting Apps⚾ |
💰 Best MLB Betting Promos 💰 |
🚨 Promo Code 🚨 |
|---|---|---|
| bet365 | Get a First Bet Safety Net up to $1,000 in Bonus Bets! or Bet $5, Get $150 in Bonus Bets Win or Lose! | TAN365 |
| Fanatics Sportsbook |
Bet $30, Get $300 in Bonus Bets! |
No Promo Code Needed |
| BetMGM | Get a 20% Deposit Match up to $1,600 in Sports Bonus! | ACTION1600 |
| Caesars Sportsbook | ACTION22DYW | Bet $1+, Get 10 100% Profit Boost Tokens! |
| Kalshi | $10 Bonus for Your CBB Tournament Picks With Our Code! | ACTION |
| DraftKings | Bet $5, Get $150 Instantly + a $50 Bonus Bet on First Deposit! | No Promo Code Needed |
The best MLB betting promos cater to every type of baseball bettor, offering everything from first bet offers to deposit matches and bet-and-gets that pay out bonus bets. Whether you're a seasoned MLB bettor looking for the most rewarding sportsbook offers or placing your first bet today, these promotions are a great way to build your bankroll and boost your potential payouts all season long.
When is 2025 MLB Opening Day?
The 2025 MLB season started on March 18, 2025, with the Tokyo Series between the Los Angeles Dodgers and Chicago Cubs. Then, MLB Opening Day with all 30 MLB teams is Thursday, March 27.
Place your MLB picks with the best MLB betting promos now!
Best MLB Betting Promos Today for the 2025 Season
While the anticipation is high for MLB Opening Day, you can get in on action today by betting on Spring Training games. All of these MLB betting promos require a first bet to get the bonus and a wager on Spring Training can unlock your desired bonus today, ahead of the 2025 MLB regular season.
1. bet365 MLB Promos
- bet365 Bonus Code: TAN365
- bet365 Sportsbook States: AZ, CO, IA, IL, IN, KY, LA, NC, NJ, OH, PA, TN, VA
The bet365 bonus code TAN365 gives new users access to two of the best MLB betting promos, allowing you to choose the promotion that best suits your betting style. Whether you prefer the security of a high-stakes wager with a First Bet Safety Net or a low-risk bet with guaranteed bonus funds, these bet365 sign-up bonus offers provide an excellent opportunity to boost your bankroll throughout the MLB season.
For those looking to place a larger first bet with added protection, the First Bet Safety Net ensures you get your stake back in bonus bets, up to $1,000, if your first wager loses. This promotion is ideal for bettors who want to wager confidently, knowing they get bonus bets back if their first bet doesn’t win.
If you prefer a low-risk way to start sports betting, bet365 Sportsbook offers $150 in bonus bets when you place a $5 first bet. You get the $150 in bonus bets regardless of whether your first bet wins or loses. This bet-and-get promo is a great way for bettors to maximize their value without a large upfront investment.
Bettors in Pennsylvania receive an enhanced version of the bet-and-get promo. By signing up with the bet365 bonus code TAN365, new users in PA automatically receive $150 in bonus bets, plus 50 spins for bet365 Casino.
2. BetMGM MLB Promos
- BetMGM Bonus Code ACTION1600: Get a 20% Deposit Match up to $1,600 in Sports Bonus!
- BetMGM Bonus Code AN1500: Get up to $1,500 Back in Bonus Bets if Your First Bet Doesn't Win!
- BetMGM Bonus Code ACTIONGET2: Bet $10 Get $150 in Bonus Bets if You Win!
- BetMGM Available States: AZ, CO, DC, IL, IN, IA, KS, KY, LA, MA, MD, MI, NJ, NC, OH, PA, TN, VA, WV, WY
BetMGM Sportsbook is rolling out some of the best MLB betting promos, giving new users multiple BetMGM bonus code options to choose from throughout the baseball season.
For bettors looking to spread their wagers across multiple MLB games, there's a 20% Deposit Match offer that rewards new users with bonus funds based on their initial deposit. Claim the BetMGM bonus code ACTION1600 deposit match offer in AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, or WY.
There's also a first bet offer option available with the BetMGM bonus code AN1500. Sign up and get up to $1,500 in bonus bets back if your first wager doesn’t win. If your bet wins, you collect your payout like any other cash bet. If your bet loses, you receive your stake back in bonus bets, up to $1,500, split into five equal bonus bet credits.
This promo is available in IL, IN, IA, LA, KS, KY, OH, TN, and WY, making it a great option for bettors looking for added protection on their first MLB bet.
The last BetMGM promo to choose from is open to those in CO, MI, NJ, PA, and WV.
3. Caesars Sportsbook MLB Promos
- Caesars Sportsbook Promo Code: ACTION22DYW
- Caesars Sportsbook States: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, ON, PA, TN, VA, WV, WY
MLB betting promos are heating up as the season gets underway, and Caesars Sportsbook is rolling out some of the best offers for new users. Whether you're backing a World Series contender or taking a shot on an underdog, these sign-up promotions provide extra value for every type of bettor.
For those looking to boost their potential winnings, Caesars Sportsbook promo code ACTION22DYW offers 10 Profit Boost Tokens on your first bet, giving you a chance to increase payouts on your MLB wagers. Whether you're betting on moneylines, run lines, or player props, these tokens provide extra earning potential throughout the baseball season.
4. Fanatics Sportsbook MLB Promos
- Fanatics Sportsbook Promos:
- Fanatics Sportsbook States: AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, NY, OH, PA, TN, VA, VT, WV, WY
Fanatics Sportsbook presents multiple welcome offers with the Fanatics Sportsbook promo, depending on the state you sign up in. Whether you’re looking for guaranteed bonus bets or No Sweat Bets, these MLB betting promos provide exceptional value for baseball fans.
Bettors in Arizona, Michigan, New Jersey, and Pennsylvania can unlock a $300 bet-and-get promo. This exclusive offer delivers $100 in bonus bets over three consecutive days.
- Place a $10+ wager on any MLB betting market with odds of -500 or longer each day.
- Receive $100 in bonus bets daily for the first three days after you sign up, win or lose.
Bettors in AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VA, VT, WV, and WY can access $1,000 in No Sweat Bets spread across 10 days. Place a No Sweat Bet on any MLB game, and if your wager loses, Fanatics Sportsbook refunds the amount in bonus bets, up to $100 per day.
Fanatics Sportsbook also offers an exclusive MLB betting promo in New York:
- New York: Sign Up and Get a 300 % Profit Boost Token – A 300 % Profit Boost Token is awarded for your first bet, which has to be a minimum of $50.
These location-based exclusive promos provide extra value for MLB bettors in NY, helping them build a bankroll while wagering on baseball’s biggest games.
5. DraftKings MLB Promos
- DraftKings Promo Code: No promo code required!
- DraftKings States: AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, PA, TN, VA, VT, WV, WY
DraftKings Sportsbook is another great option for sports bettors to snag some of the best MLB betting promos this season. Use our DraftKings promo code to get some bonus bets for your favorite MLB players or matchups this season.
Alternative Options to MLB Betting Promos
If traditional MLB betting promos aren’t available in your state, you can still stay in the game through Daily Fantasy Sports (DFS) platforms and social sportsbooks. These alternative options focus on player performance or virtual currency-based predictions, allowing you to enjoy baseball action without traditional moneyline and spread bets.
1. Underdog Fantasy (DFS)
- Underdog Fantasy Promo Code: ACTION
- Underdog Fantasy Welcome Offer: Get up to $1000 Bonus Cash when you make your first deposit!
- Underdog Fantasy States: AK, AL, AR, CA, DC, GA, IL, IN, KS, ME, MN, MS, NC, ND, NE, NM, NY, OK, OR, RI, SC, SD, TX, UT, VA, VT, WI, WY
Underdog Fantasy offers a DFS-style experience where users make “Higher” or “Lower” picks on individual player stats such as home runs, RBIs, and strikeouts. New users who sign up with the Underdog Fantasy promo code ACTION receive a 50% deposit match, up to $1,000 in bonus funds.
For example, you could build an MLB lineup for Opening Day that looks like this:
- Aaron Judge – Higher than 1.5 total bases
- Corbin Burnes – Lower than 7.5 strikeouts
- Shohei Ohtani – Higher than 2.5 hits + runs + RBI
2. Fliff Social Sportsbook
- Fliff Promo Code: ACTION
- Fliff Sign-Up Bonus: Spend $50, Get up to $100 in Fliff Coins!
- Fliff States: AK, AZ, AR, CA, CO, CT, DC, DE, FL, IL, IN, IA, KS, KY, ME, MD, MA, MI, MO, MT, NE, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SD, TX, UT, VT, VA, WV, WI
Fliff Social Sportsbook allows users to make picks with Fliff Coins instead of real money, creating a fun and interactive way to engage with MLB betting markets. With the Fliff promo code ACTION, new users receive the following promo: ACTION
3. Kalshi
- Kalshi Promo Code: ACTION
- Kalshi Sign-Up Bonus: $10 Bonus for Your CBB Tournament Picks With Our Code!
- Kalshi States: Every US State!
Kalshi is not sports betting, it is a prediction market. It recently has brought sports event contracts to fans so that they can predict outcomes on events. It is a simple premise of picking yes or no on pretty much any question imaginable. You can choose sports outcomes if you'd like, or even dabble into the world of politics or entertainment. Learn more by checking out our Kalshi referral code and review!
How to Sign Up for the Best MLB Betting Promos
Signing up for your new user bonus for MLB betting is the most important part of the process. Read our steps below to make sure you don't miss anything while preparing to get one of the best MLB betting promos.
Step 1: Click the sign up section of the promo code. The first part of this process is clicking on the promo code or bonus offer for whatever sportsbook you'd like to sign up for. You can start this process using any of the sign up options on our page.
Step 2: Enter your personal details. Once you've started the sign up process, you'll need to input your correct personal identification details for legal purposes. You'll often have to share things like your name, phone number, email, state of residence, and social security number.
Step 3: Follow the terms and conditions. Here you need to make sure you follow all the terms and conditions of your bonus offer correctly. Sometimes you'll need to input one of our promo codes, and sometimes you won't. But it is important to read the terms and conditions at the sportsbook you're using to make sure you get your sign up bonus.
Step 4: Deposit. The next step is usually to make your first deposit. This is when following the terms and conditions is important, because a lot of sportsbooks have deposit minimums of around $5 or $10 to get the new user bonus.
Step 5: Get your MLB betting promo. Once you've followed all the steps above, and the terms and conditions at your sportsbook, you can get your MLB betting promo.
Types of Promos on the Best MLB Sportsbooks
The fun of picking between the best MLB betting promos is that you have plenty of options between types of bonuses. Here are some examples of what you may see when you use any of our best MLB betting promos on baseball bets.
- Bonus Bets: The bonus bets are a typical promo offer given to new users by a lot of sportsbooks. They usually are given if a new user places a first time wager, and have an expiration on when they can be used.
- Deposit Match: A deposit match is when a sportsbook matches your first deposit with some kind of bonus credits. It is a good way to get a "2-for-1" type of deal.
- No Sweat Bets: No sweat bets are used often as well, and are simply how you can get your first wager back to you if you lose it. This is another type of "2-for-1" offer, but it is only given if your first wager loses.
- Daily Boosts: Daily promo boosts are a big part of existing user promos on pretty much every popular sportsbook. They are a great way to get better odds on popular athletes or sporting events each day, so we recommend checking those out on your favorite sportsbooks.
- Profit Boosts: A profit boost is usually given as tokens to use either as a new user offer or existing promos. These profit boosts can be added to bets or parlays to juice up the odds in your bet.
- Referral Bonuses: Sportsbooks have referral bonuses that you can share with your friends too. These help you and your friends get bonus offers back from the sportsbook just from sharing a certain code together.
- Rewards Programs: These aren't at all the sportsbooks we use, but rewards programs are a great incentive to staying consistent with a sportsbook. Fanatics FanCash is a great example of this. FanCash is earned on every bet at Fanatics Sportsbook, and you can use that later on as bonus credits in bets or in the Fanatics store.
Bet on World Series Odds With Best MLB Betting Promos
The Dodgers are heavy favorites to win the 2025 World Series, but teams like the Yankees and Mets are well-positioned to challenge them. Below are the teams with the best odds of winning the 2025 World Series. See where every team stands by checking out our World Series odds page on the MLB futures page today.
- Los Angeles Dodgers +220
- New York Yankees +800
- Atlanta Braves +900
- New York Mets +1000
- Philadelphia Phillies +1100
- Baltimore Orioles +1400
- Boston Red Sox +1800
- Houston Astros +1800
- Texas Rangers +2200
- Chicago Cubs +3000
World Series Odds Updated: March 31, 2025
MLB Betting Analysis and Daily Picks
MLB Betting is one of our favorite ways to bet for us here at Action Network. We consistently share ways to bet one home runs, MLB futures, and baseball parlays on our site.
If you're looking to tail any of our bets or just read some good analysis on MLB betting, make sure to check out our MLB betting page today.
You'll also find plenty of videos and podcasts there too that can help you with all of your baseball betting this season. Use our best MLB betting promos along with our content on baseball betting to organize all of your baseball bets.
Betting on baseball can be both fun and profitable for your bankroll. Read our Action Network article here to Learn How to Bet on Baseball.
Yes, you can place wagers on which MLB players you think will hit home runs. You should be able to search for baseball home run markets in each sportsbook you use to bet on baseball.
We've listed above in our article what sportsbooks we know have the best MLB betting promos for you to use on your baseball bets. Read our reviews above and see what new user offers you can get today.
We here at Action Network publish picks, predictions and analysis each day on our baseball bets. You can read our MLB betting each day here on the site or our Action app, where you can track your bets too.
The +1.5 spread in MLB betting is simple. If the Yankees spread is +1.5 against the Dodgers, that means they need to lose by one run or win the game. If they do that, then the spread bet wins. If they lose the game by two runs or more, then they did not cover the spread.