A worked example
£10 each-way at 10/1, place terms a fifth of the odds, three places. Total staked: £20. If the horse wins: the win half returns £110 and the place half returns £30, so £140 back, £120 profit. If it finishes second: the win half is gone, the place half returns £30, so you are £10 up. Fourth or worse: both halves lose.
When each-way earns its keep
The honest answer: less often than bookmakers would like. At a fifth of the odds, the place part is only mathematically fair when fields are big and prices are long. As a rule of thumb, each-way works hardest at 10/1 or bigger in handicaps with twelve or more runners, and especially when extra places are offered. At 4/1 in an eight-runner race, the place half is a quiet tax on your stake.
Festival week is the exception
Big-field festival handicaps with extra-place offers are one of the few times the maths genuinely bends toward the punter. That is why our festival guides flag them.
Stop reading and start pressing buttons: our each-way calculator does every version of this sum instantly.