Top 6 MLB Betting Promo Codes for Opening Day – Win $3,500+ in Bonuses

• Bet on MLB Opening Day action today, March 30
• Download the six best MLB betting promo codes and win $3,500+ in bonus bets
• Below, learn how you can claim and activate each offer as soon as possible!

MLB Opening Day is finally here, and there’s never been a better time to sign up and register with some of the best sportsbooks and US betting sites on the market. By downloading all six of the best MLB betting promo codes out there, you can unlock $3,500+ in bonus bets for Opening Day.

Keep reading below to learn more about how you can claim and activate each bonus and secure your reward money.

DraftKings Promo Code MLB – Bet $5, Win $150

Up first on this list of top MLB betting promo codes is DraftKings Sportsbook and their exclusive “Bet and Get” promotion for new bettors and customers. Bet and get offers are one of the absolute best ways to secure bonus bets.

With this DraftKings promo code, you can win $150 in bonus bets by simply signing up and placing a $5 single cash wager on the Opening Day game of your choosing.

DRAFTKINGS
SPORTSBOOK

Offer

T&Cs

Bet $5 & Get $200 in Bonus Bets INSTANTLY + Over $200 Off NFL Sunday Ticket!

GAMBLING PROBLEM? CALL 1-800-GAMBLER, (800) 327-5050 or visit gamblinghelplinema.org (MA). Call 877-8-HOPENY/text HOPENY (467369) (NY). Please Gamble Responsibly. 888-789-7777/visit ccpg.org (CT), or visit www.mdgamblinghelp.org (MD). 21+ and present in most states. (18+ DC/KY/NH/WY). Void in ONT/OR/NH. Eligibility restrictions apply. On behalf of Boot Hill Casino & Resort (KS). Fees may apply in IL. 1 per new DraftKings customer. $5+ first-time bet req. Get 1 promo code to redeem discounted NFL Sunday Ticket subscription and max. $300 issued as non-withdrawable Bonus Bets that expire in 7 days (168 hours). Stake removed from payout. Limited time offer. Terms: sportsbook.draftkings.com/promos. NFL Sunday Ticket: YouTube TV base plan (not included in this offer) required to watch NFL Sunday Ticket on YouTube TV. Subscription auto-renews yearly at then-current price (currently $378 for YouTube TV subscribers, or $480 for YouTube subscribers); cancel anytime. Terms, restrictions, embargoes and eligibility requirements apply. No refunds. Digital-only games excluded. Commercial use excluded. Addt’l terms: https://tv.youtube.com/learn/nflsundayticket/draftkings/. Offer ends 9/29/25 at 11:59 PM ET. Sponsored by DK.

LOCK IN PROMO

SIGNUP PROMO

BET $5
GET $200

+ OVER $200 OFF NFL SUNDAY TICKET

GET PROMO

FanDuel Promo Code MLB – Get up to $1,000 Back if You Don’t Win Your First Bet

Up next on this list of the top MLB betting promos and bonuses for Opening Day is FanDuel Sportsbook and their exclusive sign-up bonus for all new bettors and customers. FanDuel is one of the best baseball betting sites on the market, making them a great choice to sign up and bet with.

You can instantly download this FanDuel promo code today by clicking the featured banner below.

BetMGM Promo Code MLB – Win $1,000 in Bonus Bets for Opening Day

Another easy $1,000 in bonuses that you can add to your account this week, BetMGM Sportsbook is offering $1,000 in bonus bets to all new customers and users who are looking to sign up today and wager on Opening Day. BetMGM is another great site to bet on baseball with.

Download this BetMGM promo code by clicking the featured banner below.

BETMGM SPORTSBOOK

Offer

T&Cs

Get Up To $1,500 Paid Back in Bonus Bets

21+ Only. Gambling problem? Call 1-800-GAMBLER (US). New customers only, subject to eligibility requirements. Not available in MS, NV, ON, or PR.

Gambling problem? Call 1-800-GAMBLER (Available in the US), Call 877-8-HOPENY or text HOPENY (467369) (NY), Call 1-800-327-5050 (MA), 1-800-NEXT-STEP (AZ), 1-800-BETS-OFF (IA), 1-800-981-0023 (PR). 21+ only. Please Gamble Responsibly. See BetMGM.com for Terms. First Bet Offer for new customers only (if applicable). Subject to eligibility requirements. Bonus bets are non-withdrawable. In partnership with Kansas Crossing Casino and Hotel. This promotional offer is not available in DC, MS, NY, NV, ON, or PR.

LOCK IN PROMO

CODE: SBD1500

CODE: SBD1500

SIGNUP BONUS

GET $1,500
BACK

BET NOW

Caesars Promo Code MLB – Get up to $1,250 ‘on Caesars’

Batting cleanup on this list of top MLB betting promo codes for Opening Day is Caesars Sportsbook and their MASSIVE new user bonus. This Caesars Sportsbook promo code is by far the largest offer available to be claimed for Opening Day.

Download this Caesars promo code with the banner below, and Caesars will match your first bet up to $1,250.

CAESARS SPORTSBOOK

Bet $1 & Double Your Winnings On Your First 20 Wagers!

LOCK IN PROMO

CODE: SBD20X

CODE: SBD20X

SIGNUP PROMO

DOUBLE YOUR
WINNINGS

ON YOUR FIRST 20 WAGERS!

CLAIM OFFER

Bet365 Promo Code MLB – Bet $1 on Opening Day, Win $365

Coming in at fifth on this list of top baseball betting promo codes, Bet365 Sportsbook is offering $365 in bonus bets to all new customers and bettors looking to get in on the Opening Day action.

Click the banner below to claim this Bet365 promo code, place a $1 bet on MLB, and INSTANTLY win $365 in bonuses.

WynnBet Promo Code MLB – Bet $100 on Baseball, Win $100

Last but not least, you can unlock a final $100 in bonus bets by signing up and registering with this WynnBet Sportsbook promo code.

Click the banner below to download this WynnBet promo code today and get your $100 bonus.