Sports betting
Where online betting is licensed, which sportsbooks we list, and how odds, margins, parlays and promotions really work.
Where it is legal
Status in each place we cover, checked against the regulator. Tap a place for the full picture and, where it is allowed, the sites we list there.
- United KingdomLegal and licensed18+
- OntarioLegal and licensed19+
- AlbertaLegal and licensed18+
- Rest of CanadaBeing checked with the regulator
- AlabamaNot legal online
- AlaskaNot legal online
- ArizonaLegal and licensed21+
- ArkansasLegal and licensed21+
- CaliforniaNot legal online
- ColoradoLegal and licensed21+
- ConnecticutLegal and licensed21+
- DelawareLegal and licensed21+
- District of ColumbiaLegal and licensed18+
- FloridaLegal and licensed21+
- GeorgiaNot legal online
- HawaiiNot legal online
- IdahoNot legal online
- IllinoisLegal and licensed21+
- IndianaLegal and licensed21+
- IowaLegal and licensed21+
- KansasLegal and licensed21+
- KentuckyLegal and licensed21+
- LouisianaLegal and licensed21+
- MaineLegal and licensed21+
- MarylandLegal and licensed21+
- MassachusettsLegal and licensed21+
- MichiganLegal and licensed21+
- MinnesotaNot legal online
- MississippiNot legal online
- MissouriLegal and licensed21+
- MontanaNot legal online
- NebraskaNot legal online
- NevadaLegal and licensed21+
- New HampshireLegal and licensed18+
- New JerseyLegal and licensed21+
- New MexicoNot legal online
- New YorkLegal and licensed21+
- North CarolinaLegal and licensed21+
- North DakotaNot legal online
- OhioLegal and licensed21+
- OklahomaNot legal online
- OregonLegal and licensed21+
- PennsylvaniaLegal and licensed21+
- Rhode IslandLegal and licensed18+
- South CarolinaNot legal online
- South DakotaNot legal online
- TennesseeLegal and licensed21+
- TexasNot legal online
- UtahNot legal online
- VermontLegal and licensed21+
- VirginiaLegal and licensed21+
- WashingtonNot legal online
- West VirginiaLegal and licensed21+
- WisconsinNot legal online
- WyomingLegal and licensed18+
Learn before you play
Sports betting · 5 min read
Parlays, accumulators and bet builders: how the maths works
Why combining bets multiplies the bookmaker's margin as well as the odds, with worked numbers for 2, 4 and 8 legs, plus bet builders, teasers and cash-out.
Sports betting · 4 min read
Live in-play betting: odds, delays, cash-out and the rules
How in-play odds move, why bets are delayed and markets suspended, how cash-out is priced, and where online in-play betting is restricted.
Sports betting · 6 min read
Each-way and horse racing bets: the maths, explained
Each-way terms and worked returns, win/place/show, exactas to tricasts, starting price vs early price, Rule 4 deductions and dead heats.
Sports betting · 5 min read
Betting margins and value: overround, fair odds and CLV
How to measure a bookmaker's margin, strip it out to find fair odds, judge your bets against the closing line, and set a betting budget.
Sports betting · 5 min read
Betting exchanges explained: back, lay, liability and commission
How a betting exchange matches bettors against each other, with the arithmetic for lay liability and commission, and a plain account of matched betting.
Sports betting · 7 min read
How to read betting odds: American, decimal and fractional
Decimal, fractional and American odds are three ways of writing the same price. How to read each, switch between them, and see the chance each implies.
Sports betting · 6 min read
Sports bet types explained: moneyline to Asian handicap
What each common sports bet means, how it settles and what it pays, with worked examples for quarter-line Asian handicaps.
Sports betting · 5 min read
Odds boosts and betting promotions: what they are worth
Bet credits, odds boosts, profit boosts, price promises and deposit matches, with the expected-value arithmetic and the UK rules on wagering.
Stay safe
Sports betting: what people ask
Why has a bookmaker limited my stakes?
Bookmakers can restrict accounts for commercial reasons, most often by cutting your maximum stake. The UK Gambling Commission says operators are entitled to manage their liabilities, and being a successful bettor is not a protected characteristic, so it does not stop this. It does expect operators to be open about how, when and why an account might be restricted, ideally before you deposit.
Source: UK Gambling Commission blog: Commercial restrictions by betting operators (23 Jul 2025)
Can I always cash out a bet?
No. Cash out is an optional feature that depends on live betting markets. The UK Gambling Commission notes that markets are suspended after match incidents, which also suspends cash out, that multiple-selection bets are harder to cash out, and that bookmakers reserve the right to withdraw cash out at any time. If the terms were unclear, you may be able to appeal.
Can a sportsbook void my bet after it is placed?
Yes, in limited cases set out in the rules. Louisiana's sports wagering rules, for example, let an operator void a bet for an obvious error such as incorrect odds or equipment failure, but only under its approved internal controls or house rules, and voided stakes are refunded. Some states require the regulator to approve voids. Check your sportsbook's house rules and keep your bet ID.
Source: Louisiana Administrative Code 42:XV.1151 (sports wagering: voids and cancellations)
What happens to my bet if the game is cancelled or postponed?
It depends on the sportsbook's house rules, which regulators require to spell this out. Louisiana's rules, for example, say an operator's rules must state what happens when an event is cancelled or a bet's subject no longer exists, and that cancelled wagers are refunded as soon as practical. In a parlay, the cancelled leg is usually handled under those same rules, so read them before betting.
Source: Louisiana Administrative Code 42:XV.1151 (sports wagering: voids and cancellations)
Can I place bets when I travel to another state or province?
Only where the site is licensed and only while you are physically there. Pennsylvania uses GPS and IP checks to block online play from outside the state, and Ontario's standards require operators to detect and keep monitoring each player's location and block unverified play. Your account may stay open, but you will usually be blocked until you return.
Source: Pennsylvania Gaming Control Board: iGaming FAQ; AGCO: $30,000 penalty to NorthStar Gaming (Standard 3.02, geolocation)