Glossary · Backtest & returns
Void
A disputed or 50-50 market that refunds the stake — excluded from win rate.
A void is a resolved bet whose market was disputed or settled 50-50, so the stake is refunded rather than won or lost. Voids are excluded from win-rate calculations (which count only decided bets) and refund the stake in the backtests.
Reporting voids separately keeps the win rate honest — a refunded bet is neither a win nor a loss and shouldn’t be counted as either.