Short version: a voided bet is cancelled and your stake returned, as though it was never placed. On its own that is harmless. The problem in matched betting is when one side voids and the other does not — because at that moment you stop being hedged and start having a real bet running, usually without noticing.
Why bets get voided
- The match is abandoned or postponed. Most bookmakers void if a football match is not completed within a stated window, and exchanges void the market. Rules differ on how long that window is.
- A non-runner in racing. Your horse does not run, so the bet is void and the stake returned. Other bets in the race may be reduced under Rule 4 rather than voided.
- A player does not take part. Common on player-specific markets — first goalscorer, shots on target, cards.
- A palpable error. The bookmaker priced something obviously wrong and voids the bets taken at that price. Their terms allow it.
- You broke a term. Betting above a stated maximum, or from a restricted account, can void the bet rather than settle it.
The case that matters: only one side voids
If both sides void, nothing has happened. Both stakes come back, your liability is released, and you are exactly where you started.
The trouble comes when the bookmaker and the exchange apply different rules to the same event. A match postponed and replayed three days later might be settled by one and voided by the other. When that happens you are left holding a single, unhedged bet — a genuine gamble on an event you had deliberately arranged not to care about.
Two shapes, both worth understanding:
- The bookmaker voids, the exchange does not. Your back stake returns and you are left with a live lay bet. You now win if the selection loses and lose your liability if it wins.
- The exchange voids, the bookmaker does not. Your liability is released and you are left with a live back bet. Less alarming — the most you lose is the stake — but it is still an open position.
What to do
- Check both accounts before you assume. Do not conclude from one side. Look at the bookmaker bet history and the exchange market to see what each has actually done.
- If one side is void and the other is live, re-hedge it. Place the missing side again at the current price. You may take a small loss on the new odds — take it. An uncovered position is not worth holding to avoid a 50p difference.
- If the event is postponed rather than cancelled, check the settlement window. Some bookmakers hold the bet open for 48 hours or more. The exchange may act sooner. Knowing which comes first tells you whether to act now or wait.
- Do not place a replacement bet to “balance” a voided one on a different event. Two unrelated bets are two gambles, not a hedge.
Voided qualifying bets and your offer
A voided qualifying bet usually does not count towards an offer. The stake comes back, but so does the requirement — you will need to place another qualifying bet to trigger the free bet, and the offer’s expiry date does not extend to accommodate you.
Check the offer terms and the remaining time before re-placing. If the deadline has passed, a polite message to support is worth sending — a voided bet through no fault of yours is one of the more reasonable things to ask about. If the free bet simply has not appeared and nothing was voided, our guide on free bets that have not been credited covers the usual causes.
How to reduce how often this happens
- Prefer markets that settle cleanly. Match odds on a major fixture voids far less often than player props or minor-league football.
- Be wary of fixtures in bad weather or at risk of postponement, and of anything in a competition with replay rules.
- Avoid placing qualifying bets days in advance when the offer does not require it. The shorter the gap between placing and settling, the less can go wrong.
- Keep a record of open positions. Most people discover a one-sided void because they were checking, not because anyone told them.
Void and settlement rules vary between bookmakers and exchanges, and this page describes the general pattern rather than any specific operator’s terms. Check the rules that apply to your bet. 18+ only. Please gamble responsibly. BeGambleAware.org

