Three main variants — the Same Game Parlay, the Round Robin, and the Teaser — each solve a different problem for a parlay bettor. Before committing to any of them, it helps to understand exactly how each one is structured, what it costs you in vig, and where it fits into a sensible betting plan. For a ground-level refresher on how parlays chain legs together and multiply odds, start with the Parlay Bet Example — See Exactly How Payouts Are Calculated walkthrough.
What Is a Same Game Parlay and Why Are the Odds Lower?
A Same Game Parlay (SGP) lets you combine multiple outcomes from a single game — the spread, the total, and player props — onto one ticket. That sounds like a straightforward parlay, but it is not. Because the legs come from the same game, they are often statistically correlated: if you back a team to cover a large spread, it is already more likely the game goes over, which means those two legs are not independent events.
Sportsbooks know this, so they adjust the SGP odds downward to account for the correlation between legs. You will rarely receive the full multiplied odds that a standard multi-game parlay would produce. FanDuel, DraftKings, and Hard Rock Bet all offer SGPs and all apply some form of correlation pricing. I go deeper into the mechanics — including specific scenarios where the adjustment bites hardest — on the Same Game Parlay: How SGP Odds Are Adjusted for Correlated Legs page.
What Is a Round Robin Parlay and When Does It Make Sense?
A Round Robin takes a group of selections — say, four teams — and automatically generates every smaller parlay combination within that group (each pair, each trio, etc.). Instead of one all-or-nothing ticket, you hold several overlapping parlays simultaneously. The trade-off is cost: you stake more upfront because you are funding multiple tickets at once.
The payoff is partial coverage. If one leg loses, you lose only the parlays that included that leg, not every single bet. A straight parlay on the same four teams would return zero on any single loss. That coverage comes at a price in expected value, but for bettors who hate watching one bad call erase five correct picks, a Round Robin is a rational compromise. See the full comparison on Round Robin vs Straight Parlay: When Partial Coverage Is Worth the Extra Cost.
What Is a Teaser and How Does Moving the Spread Affect the Payout?
A Teaser is a parlay variant where you move the point spread — typically 6, 6.5, or 7 points in NFL betting — in your favor across every leg, in exchange for reduced odds on the overall ticket. Instead of taking a team at -3.5, you might get them at +2.5 after a 6-point tease, which makes it easier to win that leg. But because every leg becomes easier, the sportsbook cuts the payout dramatically. The reduced odds reflect that adjustment directly.
Teasers are most commonly used on NFL games, where the numbers 3 and 7 are key margins. Moving through those numbers on multiple legs can shift the probability enough to make a teaser a reasonable play — though the vig on parlays already averages around 24%, and teasers do not escape that structural disadvantage.
Side-by-Side Comparison of Parlay Types
| Parlay Type | Games Used | All-or-Nothing? | Odds Adjustment | Best Use Case |
|---|---|---|---|---|
| Standard Parlay | Multiple games | Yes | Full leg multiplication, vig baked in per leg | Maximizing payout when confident in all legs |
| Same Game Parlay (SGP) | Single game | Yes | Odds reduced for correlated legs | Combining spread, total, and props in one game |
| Round Robin | Multiple games | No — partial payouts possible | Higher total stake; standard odds per sub-parlay | Partial coverage when one loss is likely |
| Teaser | Multiple games | Yes | Spread moved in bettor's favor; payout reduced | NFL games where crossing key numbers matters |
Which Parlay Type Should You Choose?
The honest answer depends on your priority. If you want the highest possible payout from a small stake and you are comfortable with all-or-nothing risk, a standard multi-game parlay or an SGP on a game you have studied closely will produce the biggest potential return. Use the Free Parlay Calculator to model the exact dollar figures before you place anything.
If you want to reduce the sting of a single bad leg, a Round Robin costs more upfront but salvages something when one pick goes wrong. And if you are betting NFL spreads and want to buy yourself margin around the key numbers of 3 and 7, a teaser is the tool the sportsbooks built for exactly that purpose — just understand you are trading payout ceiling for a lower bar to clear on each leg.
Whichever variant you pick, the structural vig does not disappear. Parlays of all types account for over 70% of sportsbooks' revenue, which tells you something important about the long-run math. You can also review Why Parlays Lose So Often: 24% Vig and the All-or-Nothing Rule for a plain-numbers breakdown of the house edge across bet types. And if a leg ties rather than wins, check What Happens If a Parlay Leg Pushes to see how the ticket is recalculated.
Parlay betting is legal only where your state has authorized sports wagering; availability varies significantly across the US. Must be 21+ to bet in most states. If gambling feels like it is getting out of hand, the National Council on Problem Gambling offers free, confidential support — call or text 1-800-697-3738 any time.
Articles in This Section
| Same Game Parlay: How SGP Odds Are Adjusted for Correlated Legs | SGPs let you combine spread, total, and props from one game — but sportsbooks reduce odds when legs correlate, such as team win plus QB TDs. |
| Round Robin vs Straight Parlay: When Partial Coverage Is Worth the Extra Cost | A Round Robin costs more upfront but pays out even if some legs lose; a straight parlay returns nothing on a single bad leg — here is the math. |