Only bet totals with a sportsbook that holds a valid state license. Every operator listed here is verified as active and licensed in at least one US jurisdiction as of 2026.
Which Licensed Operators Dominate Over Under Betting?
DraftKings and FanDuel together account for roughly 70% of US online sports-betting handle. Both are licensed across the majority of legal states and offer deep totals markets on every major sport. For most bettors, those two are the default starting point.
Beyond the top two, several other best sportsbooks for over under bets compete for market share with competitive juice, alternate totals, and welcome promos. The table below lists verified active operators and their known state footprints.
Licensed Operator Comparison
| Operator | Market Share / Reach | Notable States Active | Welcome Offer (per operator terms) |
|---|---|---|---|
| DraftKings | ~35% of US handle (with FanDuel ~70% combined) | Majority of legal states; NC, IL, CO, AZ active | Bet $5, get $200 in bonus bets |
| FanDuel | ~35% of US handle (with DraftKings ~70% combined) | Majority of legal states; NC, IL, CO, AZ active | Varies; check current state offer |
| BetMGM | Multi-state; active in NC, IL, CO, AZ | NC, IL, CO, AZ and others | Bet $5, win $150 in bonus bets |
| Caesars Sportsbook | Multi-state; active in NC, IL | NC, IL and others | Varies by state; check terms |
| ESPN BET | Multi-state; active in NC, IL | NC, IL and others | Varies by state; check terms |
| bet365 | Multi-state; active in NC, CO | NC, CO and others | Varies by state; check terms |
| BetRivers | Active in IL and others | IL and others | Second chance bonus bet up to $250 |
| Fanatics Sportsbook | Multi-state; active in NC, IL | NC, IL and others | Varies by state; check terms |
Bonus cash counts toward net earnings for federal tax purposes. Must be 21+ (18+ in some states). Gambling problem? Call 1-800-GAMBLER.
How State Licensing Affects Which Operators You Can Access
PASPA was struck down May 14, 2018, handing authority back to individual states. As of 2026, roughly 39 states plus DC have legalized sports betting in some form, with about 32 permitting statewide online wagering. Tech Insider's 2026 legal-state tracker confirms the current count.
North Carolina launched online sports betting March 11, 2024 and authorized up to 12 sportsbooks. Missouri launched in December 2025. Florida mobile betting runs exclusively through Hard Rock Bet under the Seminole compact. California, Texas, and several other large states remain closed to online wagering.
Operator availability is state-specific. Colorado licenses up to 30 books with 20 currently active. Illinois holds up to 26 licenses. Arizona has 17 active sportsbooks. No operator can take your over under bet unless it holds a license in your state.
For a full breakdown of which states are open and which are not, see the state-by-state over under betting legal status guide. For the broader picture on state laws and tax obligations, the legal over under betting overview covers both topics in one place.
What to Verify Before Depositing
- Confirm the operator holds a current license in your state — not just a license elsewhere.
- Check whether the book offers reduced-juice totals at -105 rather than standard -110; that alone cuts the book's hold from ~4.76% to ~2.38%.
- Review bonus terms carefully — wagering requirements are not always published in the headline offer.
- Know your tax exposure. Winnings above $600 that are at least 300× the wager trigger a W-2G. The taxes on over under winnings page has the full 2026 federal rules.
Operator-specific totals markets, odds comparisons, and sign-up steps are covered on the individual sportsbook pages: DraftKings totals betting, FanDuel totals betting, and BetMGM totals betting.