Asked as "Does a push win a parlay?", the answer starts with one ticket. A parlay, called an accumulator in many places, joins several picks into one bet. Every leg has to win for the ticket to pay, and the odds of the legs multiply, so a small stake can return a large sum. What makes the format attractive is the same thing that makes it hard: each added leg lowers the chance that the whole bet lands.
A parlay works by multiplication. Each leg carries its own odds, and the payout on a parlay is the stake times the decimal odds of every leg multiplied together. Three legs at 2.0 each turn one unit into eight. The same arithmetic runs the other way for the chance of winning: three picks that each land half the time win together only one time in eight, and the price offered usually pays less than that fair eight.
An accumulator bet is the same idea under another name. To place one, a bettor adds selections to a single slip, picks the accumulator or multiple option and enters one stake for the lot. How does an accumulator bet work when a leg is called off? The void leg drops out and the rest stand at reduced odds. A lost leg ends the ticket at once, whatever the other results come to.
A push, where a spread or a total lands exactly on the line, does not win a parlay and does not lose it. Most books treat a pushed leg like a void one: it leaves the ticket, and the parlay pays on the legs that remain. To define a same game parlay simply: several picks from one match on one ticket. Because those picks are linked, the book prices the combination itself, and its margin on a same game ticket is wider as a rule.
Most books drop that leg from the ticket, and the parlay pays at reduced odds on the legs that remain.
A small stake treated as entertainment money priced in advance, since multiplied margins make accumulators a poor way to earn.
A bet that reverses the usual logic and pays out when at least one of the selected legs loses.
Multiply the stake by the decimal odds of every leg; three legs at 2.0 each turn one unit into eight.