Sports betting in Massachusetts: sportsbooks and exchanges available
Updated
Massachusetts has 4 of the 6 sportsbooks SlateProof tracks (DraftKings, FanDuel, BetMGM and Fanatics) and lists 3 of the 4 exchanges, and 1 of them is contested. That counts the ten venues we track, not every licensed operator.
- Tracked sportsbooks
- 4 of 6
- Tracked exchanges
- 3 of 4
- Contested exchanges
- Kalshi
- Minimum age
- 18+ to 21+, by venue (see the tables)
- Regulator
- Massachusetts Gaming Commission
- Availability checked
- October 5, 2026
- Next recheck due
- October 16, 2026
- State facts checked
- October 6, 2026
What does Massachusetts law say about sports betting?
Legal statewide. Retail sports wagering began 2023-01-31 at the facilities of Category 1 licensees, and online/mobile wagering through Category 3 operators began 2023-03-10. Source: Massachusetts Gaming Commission - Frequently Asked Questions, checked October 6, 2026.
- Regulator. The Massachusetts Gaming Commission regulates sports wagering. Massachusetts General Laws chapter 23N, section 4(a) says the commission shall regulate the conduct of sports wagering. The chapter came from the sports wagering law signed in August 2022. Source: Massachusetts General Laws c. 23N, section 4, checked October 6, 2026.
- Minimum age. The minimum age to place a sports wager in Massachusetts is 21. Chapter 23N, section 13(d)(i) says an operator shall not accept a wager from a person who is less than 21 years of age. Source: Massachusetts General Laws c. 23N, section 13, checked October 6, 2026.
- In-person and tribal rules. In-person sports wagering launched 2023-01-31 at the state's three Category 1 licensees: Encore Boston Harbor in Everett, MGM Springfield, and Plainridge Park Casino in Plainville. Mobile wagering followed in March 2023. Source: Massachusetts Gaming Commission - In-Person Sports Wagering Launches, checked October 6, 2026.
Which sportsbooks can I use in Massachusetts?
4 of the 6 tracked sportsbooks operate in Massachusetts; BetRivers and Hard Rock Bet do not.
| Sportsbook | Status | Minimum age | What differs in Massachusetts |
|---|---|---|---|
| DraftKings | Available | 21+ | No state-specific note. |
| FanDuel | Available | 21+ | No state-specific note. |
| BetMGM | Available | 21+ | No state-specific note. |
| Fanatics | Available | 21+ | No state-specific note. |
| BetRivers | Not available | n/a | Not listed in our availability data. |
| Hard Rock Bet | Not available | n/a | Not listed in our availability data. |
Are prediction markets and exchanges available in Massachusetts?
3 of the 4 tracked exchanges list sports contracts in Massachusetts, and 1 is contested: a ruling, cease-and-desist or lawsuit is pending. That is not a verdict that they are legal or illegal here.
| Exchange | Status | Minimum age | What differs in Massachusetts |
|---|---|---|---|
| Kalshi | Contested | 18+ | No state-specific note. |
| Polymarket US | Not available | n/a | Left out where sources conflict (Massachusetts, Montana, Tennessee, Utah, Washington). |
| Novig | Available | 21+ | No state-specific note. |
| ProphetX | Available | 18+ | No state-specific note. |
Status is from our availability data; the dated actions below can be newer.
What courts and officials have done about exchanges in Massachusetts
- On January 20, 2026, a Suffolk Superior Court judge granted Attorney General Andrea Campbell's request for a preliminary injunction barring Kalshi from letting Massachusetts customers bet on sporting events without a state license, calling Kalshi's view of exclusive federal oversight overly broad. Source: NBC News, checked October 6, 2026.
- The Massachusetts Supreme Judicial Court heard Kalshi's appeal of that injunction on May 4, 2026, with justices pressing both sides. A decision was expected within about four months, and none had been reported by early October 2026. Source: CommonWealth Beacon, checked October 6, 2026.
Contested states are due for a recheck by October 16, 2026. See the prediction-markets guide for how exchanges differ from sportsbooks.
Which sign-up offers and promotions apply in Massachusetts?
The catalog lists 7 sign-up offers that apply in Massachusetts.
| Venue | Offer | Ends | Checked |
|---|---|---|---|
| DraftKings | DraftKings: bet $5, get $150 in bonus bets | Ends October 18, 2026 | October 6, 2026 |
| FanDuel | FanDuel: bet $5 a day for 5 days, get $50 in bonus bets each day | Ends October 12, 2026 | October 6, 2026 |
| BetMGM | BetMGM: first bet back up to $1,500 in bonus bets | Ends November 1, 2026 | October 6, 2026 |
| Fanatics | Fanatics: up to $100 FanCash a day for 10 days | Ends December 2, 2026 | October 6, 2026 |
| Kalshi | Kalshi: trade $25, get a trading credit (minimum age 18) | No end date stated | October 6, 2026 |
| Novig | Novig: deposit $10, get $50 in trade credits (minimum age 21) | No end date stated | October 6, 2026 |
| ProphetX | ProphetX: trade $50, get $75 in incentive funds figures assumed (minimum age 18) | No end date stated | October 6, 2026 |
Existing-customer promotions at the sportsbooks here
| Sportsbook | Promotion kinds SlateProof prices | Checked |
|---|---|---|
| DraftKings | Early-win token (1), Profit boost (1), Parlay boost (1), Bonus bet (1), No-sweat or refund token (1) | October 5, 2026 |
| FanDuel | Early-win token (2), Profit boost (2), Parlay boost (1), Bonus bet (1), No-sweat or refund token (1) | October 5, 2026 |
| BetMGM | Profit boost (1), Parlay boost (1), No-sweat or refund token (1), Bonus bet (1) | October 6, 2026 |
| Fanatics | Profit boost (4), Parlay boost (1), No-sweat or refund token (1), Bonus bet (1) | October 6, 2026 |
“Assumed” marks our own typical value. Offers differ by account; the app’s offer counts. See the sign-up offers guide.
What can SlateProof do for you in Massachusetts?
With 4 sportsbooks and 3 exchanges here, the dashboard scans 21 pairs of venues for arbitrage: 6 between sportsbooks, 12 between a sportsbook and an exchange and 3 between exchanges.
- A bonus bet or boost can be hedged at another sportsbook or at an exchange here, within the accounts you hold.
- Kalshi is contested here: confirm in the app that you can open and fund an account first.
Choose Massachusetts in “Where you bet”
Where can I get help with gambling in Massachusetts?
Call or text 1-800-MY-RESET (1-800-697-3738), the National Problem Gambling Helpline, or chat at ncpgambling.org.
- The Massachusetts Gaming Commission runs a Voluntary Self-Exclusion Program for patrons who recognize they have lost control over their gambling and want external controls placed on them. Source: Massachusetts Gaming Commission - Frequently Asked Questions, checked October 6, 2026.
See also the responsible gambling page.