DraftKings, FanDuel, and theScore Bet all have excellent SGP builders. What separates them is depth, leg limits, and that one feature no other book in Ontario offers. Here is how they compare by sport, and the strategy context you need to use them well.
What Is a Same-Game Parlay
What Is a Same-Game Parlay and How Does It Work
A same-game parlay is a single wager combining multiple outcomes from the same game into one ticket. You might combine a player to score a touchdown, their team to win, and the total to go over — all in the same NFL game. If every leg hits, your payout is significantly higher than placing the three bets separately. If any leg loses, the whole ticket loses.
What makes SGPs different from traditional parlays is the correlation. In a traditional parlay, a sportsbook assumes your selections are independent. In an SGP, the legs are explicitly from the same game, so correlation is built in. A quarterback throwing for 300 yards is correlated with the total going over. Books price that correlation into the SGP odds, which is why SGP payouts are typically lower than the independent math would suggest but higher than what a single-game result alone would offer.
Example: 3-Leg NFL SGP
Patrick Mahomes over 275.5 passing yards
Player prop
-115
Kansas City Chiefs moneyline
Moneyline
-160
Game total over 47.5
Total
-110
SGP combined payout (typical)
Independent math would give roughly +380 before correlation discount
+260
The gap between +380 (independent math) and +260 (SGP payout) is the correlation discount. The book is pricing in the fact that Mahomes throwing for yards, the Chiefs winning, and the total going over are all related outcomes. The discount is legitimate — these legs are not independent. Understanding this discount is the core of SGP strategy.
The honest house edge reality: SGPs carry a higher house margin than straight bets. The Ontario market-wide average hold rate is roughly 4%. SGPs across the Ontario market run at an estimated 8-12% margin depending on book and number of legs. That is not a reason to never build an SGP, but it is a reason to size them appropriately. Use the parlay guide and EV calculator to understand what you are pricing.
Unique feature: Parlay Lounge surfaces pre-built popular SGPs with one-tap add to betslip. Best feature for bettors who want ideas, not just a blank builder.
Strengths
Parlay Lounge pre-built SGPs
Best for discovering combinations
Deep Canadian sports SGP markets
Media integration shows relevant stats
SGP details
Up to 8 legs per SGP. Parlay Lounge shows trending combinations used by other bettors.
Unique feature: bet365 calls it Bet Builder rather than SGP. The leg limit is the highest in Ontario at 20+ legs on major soccer and NFL games. Prop Protect refunds one leg of a qualifying Bet Builder if it loses.
Strengths
Highest leg limit: 20+ on major games
Prop Protect safety net
Deepest soccer Bet Builder
Live Bet Builder in-play
Parlay boosts scaling with leg count
SGP details
Up to 20+ legs on eligible events. Prop Protect available on qualifying Bet Builders. Live Bet Builder in-play.
Unique feature: Easy Parlay builds SGPs directly from the main market view without a separate builder. Edit My Bet lets you swap a leg after the SGP is placed and the game has started.
Strengths
Edit My Bet: change leg after placement
Easy Parlay builds SGPs from main view
Official NHL data partner
Deepest NHL player prop SGP market
SGP details
Easy Parlay up to 8 legs. Edit My Bet allows changing one active leg before settlement.
Official NHL data partner, deepest puck line and shot props
theScore Bet
NBA Basketball
FanDuel
Deepest player prop menu rooted in DFS, cleanest builder
DraftKings
MLB Baseball
FanDuel
Official MLB partner in Canada, deepest baseball SGP market
bet365
Soccer (EPL/CL)
bet365
Bet Builder up to 20+ legs, deepest soccer prop market in Ontario
Betano
CFL Football
theScore Bet
Canadian-first product, deepest CFL SGP coverage
BET99
Strategy
SGP Strategy: How to Build a Same-Game Parlay Intelligently
Understand correlation, do not fight it
The most common SGP mistake is stacking positively correlated legs and expecting a big payout. If you combine "quarterback over 300 passing yards" with "game total over 50," you are betting on the same underlying outcome twice. The book will reduce your payout to account for this. The better approach is to add a non-correlated or negatively correlated leg — like the opposing team's running back to have a quiet game — which gives you true diversification within the SGP without giving the book an easy correlation discount to apply.
Limit your SGP to three to five legs
The house edge compounds with every leg you add. A two-leg SGP at 8% margin becomes roughly 15% at four legs and over 25% at six legs. The entertainment value per dollar spent is highest in the three to five leg range, where the payout is meaningful but the probability of hitting is not negligible. Six-leg plus SGPs are essentially lottery tickets. See the parlay guide for the full mathematics.
Use line shopping across multiple SGP builders
The same three-leg SGP can have different payouts at different books. DraftKings, FanDuel, and theScore Bet all price SGPs independently. Building the same combination at two books and taking the better price is legitimate line shopping that most recreational bettors skip. Opening accounts at two or three top books and comparing before placing is the single highest-impact habit for improving long-term SGP value. The comparison tool can help identify which books to prioritise.
Time your SGPs relative to the news cycle
SGP odds update when injury reports, weather forecasts, and starting lineup news breaks. A receiver who gets upgraded to full practice participation late in the week is more likely to have a big game than the odds from Monday reflect. Books are fast but not instant at repricing player prop markets for SGPs. Monitoring injury reports through the week and building SGPs after late-week practice reports is a legitimate edge that does not require advanced modelling.
The Prop Protect advantage: bet365's Prop Protect feature refunds one losing leg of a qualifying Bet Builder up to a set amount. This structurally reduces the effective house edge on a multi-leg bet. If you are building a 5-leg NFL Bet Builder and one of those legs is a borderline prop, building it at bet365 with Prop Protect as insurance is better value than building the same ticket without it at a competitor.
FAQ
Same-Game Parlay Ontario: Common Questions
DraftKings is the best overall SGP book in Ontario for NFL bettors, thanks to its SGPx feature that lets you combine multiple same-game parlays from different games into one ticket. FanDuel has the cleanest SGP builder interface and leads for NBA. bet365 has the highest leg limits (20+) and is the top choice for soccer. theScore Bet is best for discovering popular pre-built SGP combinations through its Parlay Lounge.
SGPs are a higher house-edge product than straight bets. The typical Ontario SGP margin runs 8-12%, compared to roughly 4% for straight bets. They are worth betting if you approach them as entertainment with appropriately small stakes, or if you have a specific view on correlated outcomes in a game. They are not a reliable path to profit at the same sizing you would use for straight bets.
SGPx (Same Game Parlay Extra) is DraftKings unique feature that lets you combine same-game parlays from different games into a single ticket. Instead of building one SGP for the Chiefs game, you can build an SGP for the Chiefs game and an SGP for the Dolphins game, then link them. No other Ontario sportsbook currently offers this multi-game SGP format.
Leg limits vary by book and sport. DraftKings and FanDuel typically allow up to 10-12 legs on major NFL games. bet365 Bet Builder can reach 20+ legs on eligible soccer and NFL matches. theScore Bet and BetMGM are generally capped at 8 legs. All books restrict certain correlated combinations regardless of leg count.
Yes. When you build an SGP, the payout shown already reflects the book's correlation discount. Positively correlated legs — like a team winning and their quarterback throwing for yards — receive a steeper discount than uncorrelated legs. You can sometimes compare the SGP odds to the independent parlay math to estimate how much of a discount the book is applying.
