Tools · Middle calculator
Enter two American prices and your leg 1 stake. We size leg 2 so a single winner pays the same either way (S2 = S1 * d1 / d2). You get the P/L if only one side cashes, the bigger profit if the middle lands, and the hold rate (same metric as the middles feed). Learn more.
A middle pays both sides when the final result lands in the gap (for example, you hold Over 50.5 and Under 53.5, and the game lands on 51 or 52). Hold is what you pay per dollar when it does not land. Our live middles feed scans every market for these gaps so you do not have to watch the boards yourself.