Glossary
Back bet
A back bet is the conventional bet that an outcome will happen — the opposite of laying it on an exchange.
Backing is betting for an outcome at a price, the way a bookmaker bet works. In matched betting and arbitrage the back bet is placed at the bookmaker, then covered by a lay bet on the exchange.
An already-matched feed presents the back price and the exchange lay together, so the relationship a product needs is right there in the row.
Related terms & coverage
OddsRelay delivers this as part of one already-matched feed. See live coverage on the coverage dashboard.