A scalper is someone who profits from short term movements in the underlying price of a market. They are an extremely short term trader. The aim is to make money on the spread between between the back and lay price.

Launched in 2000, Betfair is the dominant betting exchange. The UK-based company pioneered the betting exchange concept where customers bet against each other, rather than the bookmakers, and can modify their positions during an event.

BETDAQ is the second largest betting exchange in the world. An advantage that BETDAQ has over Betfair is the lower commission it charges.