Whatever operator you use publishes its own rulebook, and that document governs your bet. Where it differs from what is written here, it wins. This page describes what is common across the Ontario market and where the variation usually sits, so you know which clauses to look up rather than reading forty pages cold.

Postponed before the start. Most books void and refund if the event does not begin within a stated window, commonly 12, 24 or 48 hours of the scheduled time. The window length is the thing that varies, and it matters.

Abandoned in progress. Soccer usually voids unless the match is replayed and completed within the window. Tennis often settles on the match if a result is declared. Baseball has its own convention around a minimum number of innings. There is no single answer across sports.

Venue change. A switch of ground frequently voids bets, because home advantage is priced in. A neutral-venue fixture listed as neutral from the start is unaffected.

Wrong listing. If a book publishes a fixture with an obvious error (wrong teams, wrong date, a price that is plainly a typo), palpable-error clauses let it void the bet. That clause exists in every rulebook and is used more often than people expect.

Soccer. Regulation plus stoppage time. Extra time and penalties are excluded unless the market explicitly says otherwise. A cup tie settled in extra time still settles the 90-minute market on the 90-minute score.

Hockey. Most moneylines include overtime and the shootout, so a regulation tie does not refund. Regulation-only markets exist separately and are priced differently.

Basketball. Spreads and totals almost always include overtime. This surprises people whose totals lose to a five-minute period nobody priced.

Football. Overtime included in standard markets.

Tennis. The final-set format is part of the rules of the tournament, not the book, and it changes what a set handicap is worth.

Tennis retirements. The widest variation on this page. Some operators void if a player retires at any point. Some settle if one full set is complete. Some settle on the official result regardless. Check before you bet a match where fitness is a question.

Baseball listed pitchers. Bet a game with both starters listed and a late scratch voids the wager. Bet it as “action” and it stands at the revised price. Which one you get depends on how you placed it.

Player props. A player who takes no part almost always voids the prop. A player who appears for thirty seconds and gets injured usually does not, which is a hard rule to like but a consistent one.

Esports stand-ins. Roster rules vary by tournament. Some books void when a listed player is replaced, others settle on the team name.

A void leg in a multiple is normally removed and the remaining legs reprice, rather than the whole slip failing. A parlay of five that loses one leg to a void becomes a four-fold at the original prices for the surviving legs.

Related contingencies, two outcomes where one makes the other more likely, are blocked in standard multiples and only available through a same-game product priced for the correlation. If a book accepts a related multiple by mistake, the palpable-error clause usually applies.

Cash out is an offer, not an entitlement. It is priced with a margin on top of the live market, it can be suspended at any moment, and no operator is obliged to make it available. Taking it is a second bet against your first one.

Every book caps what it will pay on a single bet, and the cap differs by sport and league. A long multiple can theoretically return more than the ceiling and will simply be paid to the ceiling.

Operators are also entitled to limit stakes on individual accounts. It is unpopular and it is standard. It is a commercial decision, not a penalty, and it is in the terms you agreed to.