Massachusetts has a regulated, competitive sports betting market. Mobile sportsbook apps went live in 2023, overseen by the Massachusetts Gaming Commission. Mobile launch March 10, 2023. This guide walks through the operators live in Massachusetts today, how the welcome offers compare, and the rules every bettor should know before signing up.
Best sportsbooks in Massachusetts
Here are the operators we recommend in Massachusetts right now, ranked on a mix of welcome-offer strength, market coverage, app quality, and how cleanly they handle the basics.
Fanatics
Get up to $1,000 in FanCash Matched Bets (100% bet match up to $100 in FanCash for 10 days) — Fanatics is the newest at-scale entrant — strong onboarding offer, sportsbook backed by the retail giant.
Dabble
Bonus offer: Get $10 When You Sign-Up to Dabble — pick’em-style daily-fantasy product across all 50 states (no traditional sportsbook needed).
Underdog Fantasy
Best Ball: Play $5, Get $75 in Bonus Entries — pick’em-style daily fantasy and peer-to-peer markets; live in most non-regulated states.
Novig
Spend 5 get $50 in Novig Coins CODE:SQUAWKA — peer-to-peer sports exchange — bet against other users rather than the book.
Kalshi
Trade $10, Get $10 Bonus — CFTC-regulated event-contract exchange; tradeable real-money in all 50 states.
Legal status & key dates
Mobile sports betting in Massachusetts is overseen by the Massachusetts Gaming Commission. Apps launched in 2023. The minimum legal age is 21. Mobile launch March 10, 2023.
How to sign up
Pick an operator above, tap through to the welcome offer, and complete the sign-up form. You will need to verify your identity (name, DOB, last four of SSN) and be physically inside Massachusetts lines when placing your first bet. Most operators accept standard bank funding, debit cards, and PayPal — check the operator-specific review for the full list.
Responsible gambling
21+. If gambling is becoming a problem, call 1-800-327-5050 or 1-800-GAMBLER for confidential help. National Council on Problem Gambling: ncpgambling.org.
FAQs — sports betting in Massachusetts
Is online sports betting legal in Massachusetts?
Yes. Mobile sportsbooks are licensed and regulated by the Massachusetts Gaming Commission.
What is the minimum age to bet in Massachusetts?
21+.
Do I need to be a Massachusetts resident to bet?
No, but you must be physically inside state lines when placing the bet. Sportsbook apps geo-locate every wager.
What about prediction markets?
Kalshi is CFTC-regulated and tradeable in all 50 states alongside the licensed sportsbooks. Polymarket is live for real-money trading in most states but is not currently available in Massachusetts.
Problem gambling help
Call 1-800-327-5050 or 1-800-GAMBLER for confidential support.
21+ · Gambling Problem? Call 1-800-327-5050 or 1-800-GAMBLER · Odds and offers correct at time of writing.