Online sports betting is officially live in Massachusetts, and the leading sportsbooks in the country are lining up to offer incredible welcome offers to new users. See how you can claim close to $4,000 in Massachusetts sportsbook bonuses. Best Massachusetts sportsbook promo codes: How to sign up now to receive nearly $4,000 in bonuses Massachusetts online sports betting went live on March 10 and the top sportsbooks in the industry each have uniquely lucrative promotions to welcome new bettors. Here’s a breakdown of what the bonuses are and how to claim them. Massachusetts DraftKings promo code: Claim $1,250 in bonuses including $200 guaranteed on your first bet DraftKings is at the top of the list for most sports bettors and the does not disappoint. Arguably the most generous welcome offer in the industry, it includes: Use our link (no promo code needed), then sign up and make your first deposit of $5 or more to start. Make your first $5 cash wager on anything DraftKings offers in Massachusetts and you’ll qualify for your $200 in bonus bets by doing so. When your first bet is settled, you’ll receive eight $25 bonus bets to be used within the next seven days. Bonus bets can be used throughout the DraftKings sportsbook but must be used on wagers with odds of -300 or shorter. The $50 bonus bet is delivered as soon as you make your first deposit and 20% of your deposit amount is matched by DraftKings, up to $1,000. The deposit match is paid out $1 for every $25 wagered until the full amount is reached. Beyond the three-part welcome offer, DraftKings features a robust rewards program and industry-leading promotions offered daily across all active sports. BetMGM Massachusetts bonus code OLBONUS: Get up to a $1,000 first bet offer This sportsbook is renowned for its incredible selection of promos and props, but it all starts with an incredible welcome offer that can be claimed by signing up with . The offer provides the opportunity to massively increase your bankroll on your initial bet. If your first bet loses, you will receive a 100% refund to place a second chance bet up to $1,000. Hit your first bet and enjoy the big win. But if you lose, you’ll receive 100% matching bet credits. If your bet was under $50 you will receive one bet token. Bets $50 and above will receive five equally valued bet tokens. Make sure to visit our BetMGM bonus code links to discover the latest odds, ongoing promotions, and more in Massachusetts. Caesars Massachusetts promo code MYBET1BET: Claim up to $1,500 if first bet loses Caesars Sportsbook is known for its generous welcome offer, ongoing promotions, and massive betting menu. In the Bay State, we can expect more of the same once you register with our . The initial welcome offer focuses on the first bet after registering and making a deposit. Simply place your first bet on any eligible market and if it falls short, get reimbursed in bet credits up to $1,500. The bonus works as a safety net for new players and is the largest offer of its kind in Massachusetts. Bet credit will be issued within 48 hours. They can be used on any Caesars Sportsbook offering and are valid for two weeks. Caesars also has ongoing promotions such as odds boosts, profit boosts, bet and get offers, and much more. .