Bookmaker termsGlossary
Acca boost
Also known as: Multi boost, Acca insurance
A bookmaker promotion that adds a percentage boost to the return on a winning accumulator — typically 5% on a four-fold, scaling up to 70-100% on ten-fold+ accumulators. The boost is the bookmaker's response to compounded margin: even a 50% boost on an eight-fold acca only recovers a fraction of the 33%+ overround the bet has structurally paid in.