MLB Betting Promos: Opening Day Offers Supply $4,000 in Bonus Funds for MLB Betting Picks

Doubling your winnings is every bettor’s dream, and with Caesars Sportsbook having one of the top MLB betting promos, you can do just that. Sign up using the Caesars Sportsbook promo codeACTION4DYW to receive 10 Profit Boost Tokens after placing just a $1 first bet.

Here’s how to secure your Profit Boost Tokens and use them ahead of MLB Opening Day:

• Place a $1 first wager
• Instantly receive 10 Profit Boost Tokens
• Use them on bets up to $25 on MLB markets.
• Double your profits on any winning bet

Profit Boost Tokens expire 14 days after they are credited to your account.

These Profit Boost Tokens are a fantastic way to add value to your MLB Opening Day bets, as well as your plays in other sports like the NBA, NHL, NCAAB, and more.

3. BetMGM

• BetMGM Bonus Code: ACTIONGET
• BetMGM Promo: Bet $10, Get $150 in Bonus Bets if You Win
• BetMGM Bonus Code: TOPTAN1600
• BetMGM Promo: 20% First Deposit Match, Up to $1,600 in Sports Bonus
• BetMGM Bonus Code: TOPACTION
• BetMGM Promo: $1,500 First Bet Offer
• BetMGM States Available: AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, WY

BetMGM Sportsbook is the place to be for MLB betting this season, as they are featuring MLB betting promos to help new users maximize their bonus value for Opening Day. Whether you’re looking for bonus bets, a deposit match, or a first bet offer, there's a BetMGM bonus code to suit your needs.

Bet $10, Win $150 in Bonus Bets (Available in CO, MI, NJ, PA, and WV):

Register with the BetMGM bonus code ACTIONGET, place a $10+ bet on any MLB market, and if it wins, you receive $150 in bonus bets. Just remember, your first wager must win to unlock the bonus.

20% Deposit Match Up to $1,600 (Available in AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, and WY):

Use BetMGM bonus code TOPTAN1600 to get a 20% deposit match up to $1,600. To unlock the full amount, deposit $8,000 or more—but any deposit of $10 or more qualifies for bonus funds.

First Bet Offer – Up to $1,500 in Bonus Bets (Available in AZ, DC, IA, IL, IN, LA, KS, KY, MA, MD, NC, OH, TN, VA, and WY):

For those looking to make a larger first bet, sign up with BetMGM bonus code TOPACTION. If your first wager loses, you get your stake back in bonus bets up to $1,500, divided into five equal parts.

4. Fanatics Sportsbook

• Fanatics Sportsbook Promo: Activate Here
• Fanatics Sportsbook Bet-and-Get Promo: Bet $30, Get $300 in Bonus Bets
• Fanatics Sportsbook Sign-Up Bonus: $1,000 in No Sweat Bets
• Fanatics Sportsbook NY Sign-Up Bonus: 300% Profit Boost Token
• Fanatics Sportsbook States Available: AZ, CO, CT, DC, IA, IN, KS, KY, LA, MA, MD, MI, NJ, OH, PA, TN, VA, VT, WV, WY

Fanatics Sportsbook is offering a variety of MLB betting promos to kick off the season, giving new users the flexibility to pick the Fanatics Sportsbook promo that best suits their style and location as Opening Day approaches on Thursday, March 27. Whether you're after a bet-and-get offer, No Sweat Bets, or a Profit Boost, Fanatics Sportsbook has a great option for those looking to make the most of their MLB bets.

$300 Bet-and-Get Bonus (Available in AZ, CO, CT, IL, IN, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV):

This fan-favorite offer gives you $300 in bonus bets over three consecutive days:

• Place a $10+ bet each day for three consecutive days

• Receive $100 in bonus bets after each day, totaling $300

Up to $1,000 in No Sweat Bets (Available in AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VA, VT, WV, WY):

Fanatics Sportsbook offers 10 days of No Sweat Bets. If your bet loses, you get up to $100 back in bonus bets each day—up to $1,000 total—so you can keep betting, even if your first bets of the MLB season don't hit.

300% Profit Boost Token (New York Exclusive):

New York bettors can triple their payout on MLB Opening Day with a 300% Profit Boost Token:

• Bet up to $50 on any eligible MLB market

• If your bet wins, Fanatics Sportsbook triples your profit, giving you massive value on a single wager.

Alternate MLB Betting Promos for Opening Day

With MLB Opening Day almost here, it's important to know you don’t have to rely solely on traditional sportsbooks to get in on the action. Platforms like Kalshi and Underdog Fantasy are offering unique, exciting ways to engage with MLB this season. Whether you’re into predictive markets or building daily fantasy baseball lineups featuring the stars of the diamond, there’s something for everyone.

1. Kalshi Predictive Market

• Kalshi Promo Code: ACTION
• Kalshi Welcome Offer: Make $100 in Trades, Get $10 Sign-Up Bonus
• Kalshi States Available: All 50 States + Washington D.C.

Kalshi gives you a new way to experience Major League Baseball by letting you trade on outcomes instead of placing traditional bets. This platform lets you speculate on everything from player awards to playoff outcomes, adding an exciting futures-style twist to your betting.

How to Claim Your Kalshi Bonus:

• Sign up using the Kalshi promo code ACTION
• Make $100 in trades across any market
• Receive a $10 bonus to continue trading and exploring