GrailBet Sportsbook

The GrailBet Sportsbook sits alongside the casino on one account. Use the Casino / Sports switch in the header at GrailBet and you move straight from the slot lobby to football, tennis or esports with the same balance.

The sportsbook is powered by Betby, a dedicated sports betting platform. This page is an overview: which sports you can bet on, the kinds of markets you will see, how singles and multiples work, how to read decimal odds and how the sports welcome bonus fits in.

Sports you can bet on

Coverage spans the big global sports and several niche favourites. The Highlights & Popular section on the sportsbook home page gathers the most followed events of the day, so you do not have to dig through every league to find them.

Category	Sports and titles
Team sports	Football, basketball, ice hockey, American football, baseball, cricket, rugby
Individual sports	Tennis, darts
Combat sports	MMA, boxing
Racing	Motorsport
Esports	Counter-Strike, Dota 2, League of Legends, Valorant, Call of Duty
Extras	Predictions markets (entertainment, politics and country-specific topics where available) and Event Builder simulated football and ice hockey

Esports have their own guide: see GrailBet esports betting for titles and market types. For matches already under way, our GrailBet live betting page covers in-play mechanics and Event Builder in detail.

Pre-match and live markets

Every event can be bet on before it starts (pre-match), and many can also be bet on while play is in progress (live or in-play). The exact markets depend on the sport and the event, but common types include:

• Match result — who wins, or whether the match is drawn where a draw is possible.
• Totals — whether goals, points, games or rounds go over or under a line.
• Handicaps — one side starts with a virtual advantage to balance an uneven match.
• Player and period markets — outcomes for a specific half, quarter, set or player, where offered.

Always open the event to see its full list of markets. Smaller leagues usually carry fewer options than headline fixtures.

Reading decimal odds

GrailBet shows odds in decimal format. The number tells you the total return for each unit staked, including the stake itself. To find your potential return, multiply your stake by the odds.

Worked example: you stake $10 on a team at odds of 2.50. If the bet wins, the return is $10 × 2.50 = $25. That is your $10 stake back plus $15 profit. If it loses, you lose the $10.

Decimal odds also hint at how likely the market thinks an outcome is. Divide 1 by the odds: 1 ÷ 2.50 = 0.40, or roughly 40%. The bookmaker’s margin is built in, so these figures across all outcomes add up to a little over 100%.

Singles and multiples

The bet slip supports two basic bet types. A single is one selection: it wins or loses on its own. A multiple (also called an accumulator) combines several selections from different events into one bet, and every selection must win for the bet to pay.

In a multiple, the odds are multiplied together. Three selections at 1.80, 1.60 and 1.50 give combined odds of 1.80 × 1.60 × 1.50 = 4.32. A $10 stake would return $43.20 if all three win, and nothing if any one of them loses.

Bet type	Selections	How it pays	Risk
Single	1	Stake × odds if the selection wins	Lower: one outcome to get right
Multiple	2 or more	Stake × combined odds if every selection wins	Higher: one losing leg loses the whole bet

The sports welcome bonus in brief

New players can choose a sports welcome bonus across their first three deposits: 100% up to $150 on the first, 75% up to $150 on the second and 50% up to $150 on the third, so up to $450 in total, or the equivalent in your account currency.

Each stage must be wagered 8 times the deposit plus bonus. Only multiples with three or more selections and combined odds of 4.00 or higher count, and you have 30 days from activation. For example, a $100 deposit with a $100 bonus means $1,600 of qualifying multiples. Maximum conversion is 5x the bonus received per stage, and one stage runs at a time.

You choose either the casino or the sports welcome offer on each deposit, not both. The full breakdown, with more examples, is on our GrailBet sports bonus page, and every current offer is listed under GrailBet bonuses. Offers can differ by country; the offer shown in your account is the one that applies.

Betting on mobile and responsible betting

The sportsbook works in the mobile browser on iOS and Android. There is no native app, but you can add GrailBet to your home screen for one-tap access.

Sports betting should stay entertainment. Set a budget before you place a bet, avoid raising stakes to win back losses and never bet on outcomes you feel emotionally tied to if it clouds your judgement. Deposit limits, session limits and self-exclusion are available in your account; our responsible gaming page explains how to use them.