Why your same-game parlay pays less than the math says

You multiplied the legs, got one number, and the slip shows a smaller one. You're not crazy, and the app isn't broken. Your legs are teammates — literally — and the book knows it.

The short version

Parlay math assumes the legs are independent: multiply each leg's decimal odds together and that's the price. But legs from the same game win and lose together. If Terry McLaurin goes over his receiving yards, Jayden Daniels is probably over his passing yards too — one catch counts for both. Correlated legs hit as a group more often than independent coin flips would, so the leg-by-leg multiplication overpays. Sportsbooks fix that by repricing the ticket, usually well below the independent number, sometimes about half.

A real example

Here's a 4-leg ticket our machine dealt from a single game — Commanders @ 49ers, Week 6 of 2026, every leg priced at DraftKings:

Leg by leg, those four multiply out to +1,168 — $10 returns $126.79. Put the same four legs on one DraftKings slip and it gets priced as a same-game parlay, below that number. The gap between the two prices is the correlation haircut, and you should know its size before you bet, not after.

When an SGP is still worth pulling

Correlation cuts both ways. The book pays you less because your legs win together — but your legs winning together is also genuinely good for you. A stack of QB-over plus his-receiver-over really does hit more often than two independent flips. The practical question is whether the book's haircut took more than the correlation gives back, and the only way to judge it is to see both numbers: the leg-by-leg price and the slip price. If the slip shows a small haircut on strongly-correlated legs, that's the better end of the SGP menu. A huge haircut on loosely-related legs — your running back's rushing yards and the other team's kicker — is paying a correlation tax on legs that barely correlate.

Rule of thumb: get the leg-by-leg number first, then look at the slip. If you can't explain why the legs help each other, the haircut is pure cost.

How to see the gap in 10 seconds

Multiply each leg's decimal odds, or let our parlay calculator do it. Then compare with your slip. Slip says +650 where the math says +1,168? The repricing took about 44% of your potential profit: profit of $65.00 versus $116.79 on $10. That's the number the slip never shows you.

And because every book runs its own correlation model, the same SGP gets quoted differently across books — the gaps between books on same-game tickets are even wider than on normal parlays. Here's how we compare books on the same legs.

FAQ

Why does my same-game parlay pay less than multiplying the legs?

Because the legs are correlated. If your receiver goes over his yards, his quarterback is probably over his passing yards too — the legs win together more often than independent coin flips would. Books reprice same-game parlays to account for that, usually well below the leg-by-leg multiplication, sometimes about half.

Is a same-game parlay ever worth it?

Sometimes. If your legs are positively correlated, you genuinely do win more often than independent odds suggest — the question is whether the book's repriced payout cut more than the correlation is worth. Compare the SGP price on your slip with the leg-by-leg number before betting: the smaller the haircut on strongly-correlated legs, the better the ticket.

How do I see how much my book repriced my SGP?

Multiply each leg's decimal odds together and compare with the parlay price on your slip. If the leg-by-leg math says +1,168 and the slip says +650, the repricing took about 44 percent of your potential profit.

Do all books reprice same-game parlays the same way?

No. Each book uses its own correlation model, so the same same-game legs can be quoted very differently across books — and some combinations are blocked entirely at one book and allowed at another.