A Same Game Parlay (SGP) lets you chain multiple outcomes from a single game — say, a point spread, an over/under, and a player prop — onto one ticket. The catch is that sportsbooks will often trim the quoted odds when your legs are statistically linked, a process called correlation adjustment, so the payout is lower than a straight multiplication of each leg's decimal odds would suggest.
What exactly is a Same Game Parlay?
On a standard parlay you pull legs from different games. An SGP pulls everything from one game: the Chiefs -4.5, the over 51.5, and Patrick Mahomes over 2.5 passing touchdowns, for example, all on a single ticket. FanDuel and DraftKings both offer SGP builders where you tap each market and the platform assembles the combined line in real time.
The appeal is obvious — one game, one focus, one potentially large payout. But that convenience comes with a pricing trade-off I'll walk through below.
Why do correlated legs get their odds reduced?
Correlation means two outcomes move together. If the Chiefs cover a big spread, their QB almost certainly threw well — so "Chiefs cover" and "Mahomes over 2.5 TDs" are not independent events. A sportsbook that priced them independently would be undercharging for the combined probability of both hitting. To protect their margin, operators reduce the SGP odds below what a straight decimal multiplication would produce.
Per CBS Sports, sportsbooks may outright restrict certain correlated combinations — particularly parlaying the point spread and moneyline of the same team — or reprice them to account for the statistical link. You may not see the restriction until the ticket is rejected at checkout.
How does an SGP payout compare to a standard parlay?
Take three legs at -110 each from different games. Converting to decimal: 1.909 × 1.909 × 1.909 ≈ 6.96, which implies roughly +596 American odds. A $100 wager returns about $696 total, as shown in the 3-team parlay example walkthrough.
Pull those same three legs from one game as an SGP and the platform's correlation engine might spit out +420 instead of +596. The exact reduction varies by book and by how tightly the legs are linked. Use the Free Parlay Calculator — Enter Your Legs, See the Exact Payout to plug in whatever combined odds the sportsbook quotes and see the real dollar return before you confirm.
Which sportsbooks offer SGPs?
FanDuel Sportsbook and DraftKings Sportsbook both have dedicated SGP builders. Hard Rock Bet lets you mix moneyline, spread, over/under, props, and futures in a single parlay ticket, which covers SGP-style construction. BetMGM also supports SGPs, though its parlay promotions are not available in MS, NY, NV, ON, or PR, so bettors in those locations should verify availability before building a ticket.
For a deeper look at how FanDuel and DraftKings compare on SGP options and payout speed, see the FanDuel vs DraftKings parlay comparison.
Is an SGP worth building?
The honest answer: only if you have a strong opinion on multiple aspects of one game and you understand the odds have already been discounted. The average vig on parlays runs about 24% — far above the roughly 4.5% on a single-game bet — and correlation adjustments tighten that further on SGPs. That does not make them off-limits, but going in eyes-open matters.
If losing every leg of one bad game outcome sounds worse than losing some legs across several games, Round Robin vs Straight Parlay: When Partial Coverage Is Worth the Extra Cost explains a structure that can cushion partial misses. You can also read about why parlays lose so often to put the vig math in full context before committing real money.
Parlay betting, including SGPs, is legal only in states that have authorized sports wagering — more than 30 states plus D.C. as of 2024, following the Supreme Court's 2018 PASPA repeal. Mississippi and Montana, for instance, limit wagering to retail locations, so mobile SGPs are not an option there. Check where parlay bets are legal in 2026 for a full state-by-state breakdown. Must be 21+ in most states. Gambling problem? Call 1-800-GAMBLER or reach the National Council on Problem Gambling 24/7 at 1-800-MY-RESET.