Best Online Sports Betting Apps & Sites in Massachusetts: March 2023

With March Madness in full swing and the Boston Celtics and Bruins having championship-caliber seasons, there’s never been a better time to be a sports fan in Massachusetts. Now, there’s never been a better time to be a sports bettor as well. With the recent launch of legal online sports betting, there are plenty of sportsbooks to join.
We’ve collected the best online sports betting apps for you in this article. Not only that, but they also each have incredible sign-up bonuses to claim when you join. The best online sports betting apps we’ve outlined for you are provided by DraftKings, Caesars, BetMGM and WynnBET sportsbooks.
The Best Online Sports Betting Apps to Join in Massachusetts
Taking in the full details for each of the best online sports betting apps may feel like a lot, so to help ease into things, here is a quick summary of each of the sign-up bonuses each one offers before we fully dive in:
- DraftKings Sportsbook: Bet $5 on anything and win $200 in bonus bets guaranteed
- Caesars Sportsbook: Up $1,500 in bonus bets back if your first bet loses
- BetMGM Sportsbook: First-bet insurance up to $1,000
- WynnBET Sportsbook: Bet $100 and get $100 bet credit no matter what
DraftKings Massachusetts Sports Betting App & Sign-Up Bonus
Leading off our list of the best online sports betting apps is DraftKings Sportsbook. New users can sign up here to gain access to a top-tier mobile app with a sleek design to go along with an instant boost to their bankroll. That’s because all new customers are eligible for the DraftKings ‘Bet $5, get $200’ bonus offer.
There’s no DraftKings Massachusetts promo code needed, so all it takes to get started is a $5+ deposit. Then, simply bet at least $5 on any game from any sport and no matter the outcome, you’ll instantly win $200 in bonus bets. So, if receiving 40 times your wager amount without even winning your bet sounds good to you, don’t miss out and join one of the best online sports betting apps in DraftKings through this link.
Caesars Massachusetts Sports Betting App & Sign-Up Bonus
Caesars is an operator that is world-renowned for their resorts, but they’ve also evolved into one of the best online sports betting apps. When you create a new account using Caesars Massachusetts promo code FANTASYA1BET, you’ll not only gain access to their mobile app, but also secure their new launch promo for bettors in the Bay State.
They’re providing insurance on all new members’ first wager up to $1,500. That means if it’s unsuccessful, they’ll award you a bonus bet of the amount you wagered as a refund. Just be sure that your first bet is at least $10, and it can be on any sporting event. Remember, all it takes is the Caesars Massachusetts promo code FANTASYA1BET when registering here.
BetMGM Massachusetts Sports Betting App & Sign-Up Bonus
Next up on our list of the best online sports betting apps is another operator that is known for their resorts. That would be BetMGM Sportsbook, and they too are offering a great welcome bonus to those in Massachusetts. Like Caesars, they’re provided insurance on your first bet, except you won’t need to enter a BetMGM Massachusetts promo code.
Simply deposit at least $10 and then place your first bet of $10+ and up to $1,000. If it wins, you’ll be paid out as normal. If it loses, you’ll receive bonus bets of equivalent value. Either way, you don’t come away empty-handed with that initial wager. You can use this link to join one of the best online sports betting apps and lock in your $1,000 promotion today.
WynnBET Massachusetts Sports Betting App & Sign-Up Bonus
Wrapping up our list of the best online sports betting apps for Massachusetts sports bettors is WynnBET. They are a name that is gaining steam in the US, and you can sign up here to join in on the action. In the process, you can also claim their newest welcome bonus for a $100 bet credit guaranteed.
Once your account is up and running, make a deposit of $100 and then a first wager of $100 on any selection with odds of -120 or greater. Then, win or lose, you’ll be awarded a $100 bet credit. Not needing to sweat the outcome of a bet is a beautiful thing, so don’t let this WynnBET sign-up bonus pass you by and click here to join one of the best online sports betting apps.
What to Bet on with the Best Online Sports Betting Apps
With four of the best online sports betting apps now in your arsenal, it’s time to make those initial bets. Here are some matchups on the board today worth checking out:
NBA:
- Denver Nuggets vs. Brooklyn Nets - 3:30 PM ET
- Toronto Raptors vs. Milwaukee Bucks - 8 PM ET
NHL:
- Boston Bruins vs. Buffalo Sabres - 1 PM ET
- New Jersey Devils vs. Tampa Bay Lightning - 7 PM ET
NCAAB March Madness:
- #7 Michigan State vs. #2 Marquette - 5:15 PM ET
- #5 Miami (FL) vs. #4 Indiana - 8:40 PM ET
Getting Started with the Best Online Sports Betting Apps
With online sports betting still being new to Massachusetts, you may be wondering how to get started with each of the best online sports betting apps. Thankfully, that’s the easiest part. You’re welcome to just click on any of the links we’ve provided, such as the ones below, to join and grab your sign-up bonus in the process:
- DraftKings Sportsbook: Bet $5 on anything and win $200 in bonus bets guaranteed
- Caesars Sportsbook: Up $1,500 in bonus bets back if your first bet loses
- BetMGM Sportsbook: First-bet insurance up to $1,000
- WynnBET Sportsbook: Bet $100 and get $100 bet credit no matter what
Player News
Browns head coach Kevin Stefanski said QB Shedeur Sanders is “willing to put in the work” this offseason.
ESPN’s Jordan Raanan expects Jaxson Dart to sit his entire rookie year if “all goes well.”
The problem with that otherwise sensible opinion, of course, is that it is extremely unlikely “all goes well” with Russell Wilson and Jameis Winston on a roster that found itself picking at No. 3 overall last month. If the Giants are genuinely serious about redshirting Dart for a year, it will be easier than most places because of the presence of two veteran quarterbacks instead of just one, but coach Brian Daboll and GM Joe Schoen both have their jobs on the line. That almost equals “break rookie glass.” Teams have become more amenable to sitting blue-chip rookie QBs in recent years, but we would be stunned if Dart fails to make 2025 starts.
Colts claimed DT Eric Johnson II off waivers from the Patriots.
A 2022 fifth-round pick of the Colts, Johnson spent two years in Indy before last year’s sojourn in Boston. Waived at final cuts last summer, Johnson was claimed by the Pats. He’s been a steady special teamer and rotational depth piece up front. Johnson’s Colts experience greatly enhances his 53-man roster odds, but his spot will be far from a given. He turns 27 in July.
NBC Sports’ Matt Maiocco reports that the 49ers and OT D.J. Humphries do not have a deal in place.
Humphries reported on his social media account a few weeks ago that he had agreed to a contract with the 49ers, but that does not appear to be the case. At least for now. Humphries tore his ACL at the end of the 2023 season and was released by the Cardinals. He spent most of the 2024 season rehabbing before signing with the Chiefs. He started at left tackle in Week 14 before hurting his hamstring and missing the rest of the season. He will continue to search for another opportunity.
Patriots DT Christian Barmore (blood clots) will be ready to play in Week 1.
Barmore was limited to just four games last season while battling blood clots. He told reporters on Thursday that he’s been cleared for all football activity and has been a full participant in the Patriots’ offseason workout program. He expects to be fully ready by Week 1.
Raiders hired Brandon Hunt as Vice President of Player Personnel
Hunt was most recently the senior director of scouting for the Philadelphia Eagles and spent the previous two seasons as their director of scouting. Before joining the Eagles, Hunt spent 12 seasons (2010-21) as the pro scouting coordinator for the Pittsburgh Steelers.