Exchange vs Sportsbook

NBA Championship Odds: Polymarket vs BetMGM, BetRivers, FanDuel

30 NBA Championship entrants currently have a live price on both a prediction-market exchange and a real sportsbook. The widest gap right now is Oklahoma City Thunder, priced at 21.5% on Polymarket versus an average of 28.9% across sportsbooks — a +7.4pt gap on the identical event.

30 entrants compared
4 venues
Source market NBA: 2027 Champion

Where is the NBA Championship priced differently?

Every row below has a real, live quote from at least one exchange and one sportsbook — no placeholder or zero-probability rows. Best marks the single highest-payout price per entrant; Edge flags a gap of 3+ percentage points between what the exchange and sportsbooks believe.

Entrant Polymarket BetMGM BetRivers FanDuel Edge
Oklahoma City Thunder
Best 21.5% +365
27.8% +260
28.6% +250
30.3% +230
+7.4pt
San Antonio Spurs
Best 20.5% +388
27.8% +260
28.6% +250
27.0% +270
+7.3pt
Philadelphia 76ers
13.0% +669
10.5% +850
10.0% +900
Best 9.1% +1000
-3.1pt
New York Knicks
Best 9.5% +953
10.0% +900
10.0% +900
9.5% +950
+0.3pt
Boston Celtics
Best 4.5% +2122
7.1% +1300
6.7% +1400
6.7% +1400
+2.3pt
Toronto Raptors
3.8% +2567
Best 3.2% +3000
4.8% +2000
3.9% +2500
+0.2pt
Denver Nuggets
Best 3.4% +2885
3.9% +2500
3.9% +2500
3.9% +2500
+0.5pt
Minnesota Timberwolves
Best 3.3% +2977
3.9% +2500
3.9% +2500
3.6% +2700
+0.5pt
Cleveland Cavaliers
3.3% +2977
Best 3.2% +3000
3.2% +3000
3.6% +2700
+0.1pt
Miami Heat
3.1% +3075
3.2% +3000
3.2% +3000
Best 2.4% +4000
-0.2pt
Detroit Pistons
Best 2.9% +3290
3.2% +3000
3.9% +2500
3.9% +2500
+0.7pt
Los Angeles Lakers
2.1% +4778
Best 2.0% +5000
2.4% +4000
2.2% +4500
+0.1pt
Houston Rockets
1.9% +5028
Best 1.6% +6000
2.4% +4000
2.9% +3300
+0.4pt
Indiana Pacers
1.8% +5305
Best 1.5% +6600
2.4% +4000
2.2% +4500
+0.2pt
Washington Wizards
1.3% +7900
0.7% +15000
0.7% +15000
Best 0.5% +20000
-0.6pt
Golden State Warriors
Best 1.1% +9424
1.5% +6600
1.6% +6000
2.0% +5000
+0.6pt
Portland Trail Blazers
Best 1.1% +9424
1.2% +8000
1.2% +8000
1.3% +7500
+0.2pt
Atlanta Hawks
Best 0.9% +10426
1.5% +6600
1.6% +6000
2.0% +5000
+0.7pt
Orlando Magic
Best 0.9% +11665
1.2% +8000
1.6% +6000
2.2% +4500
+0.8pt
Utah Jazz
0.8% +13233
Best 0.4% +25000
0.7% +15000
0.8% +12500
-0.1pt
Charlotte Hornets
Best 0.5% +18082
0.8% +12500
1.0% +10000
1.2% +8000
+0.5pt
Dallas Mavericks
0.5% +18082
0.5% +20000
0.7% +15000
Best 0.2% +50000
-0.1pt
Phoenix Suns
Best 0.4% +22122
0.7% +15000
0.7% +15000
0.8% +12500
+0.3pt
Los Angeles Clippers
0.3% +39900
Best 0.1% +75000
0.2% +50000
0.3% +40000
-0.1pt
Chicago Bulls
0.3% +39900
Best 0.1% +75000
0.2% +50000
0.1% +75000
-0.1pt
Memphis Grizzlies
0.3% +39900
Best 0.1% +75000
0.2% +50000
0.1% +75000
-0.1pt
New Orleans Pelicans
0.1% +66567
Best 0.1% +75000
0.2% +50000
0.1% +75000
+0.0pt
Milwaukee Bucks
0.1% +66567
Best 0.1% +75000
0.2% +50000
0.1% +75000
+0.0pt
Brooklyn Nets
0.1% +66567
Best 0.1% +100000
0.2% +50000
0.1% +75000
-0.0pt
Sacramento Kings
0.1% +66567
Best 0.1% +100000
0.1% +100000
0.1% +75000
-0.0pt

Prices are implied probability derived from each venue's live quote (exchange price or American odds with vig). Best marks the single highest-payout price across every venue for that entrant. Edge = sportsbook-consensus probability minus exchange probability, in percentage points — a positive edge means sportsbooks price that outcome higher than the exchange does. Stale flags any quote observed more than 48 hours ago.

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Frequently Asked Questions

What is the odds gap between exchanges and sportsbooks on the NBA Championship?
Our data shows the widest current gap is on Oklahoma City Thunder: Polymarket prices it at 21.5%, while sportsbooks imply 28.9% on average — a +7.4pt difference on the identical outcome.
Where can I get the best price on the NBA Championship?
It depends on the entrant — the table above marks the single best (highest-implied-payout) price per entrant across every tracked venue. No one venue wins across the board: Polymarket and BetMGM, BetRivers, FanDuel each lead on different entrants.
How many venues does Odds Reference track for the NBA Championship?
4 venues currently: Polymarket as prediction-market exchange, and BetMGM, BetRivers, FanDuel as sportsbooks, across 30 entrants with a live quote from both venue types.
Why do exchange and sportsbook prices differ for the NBA Championship?
Prediction-market exchanges like Polymarket set prices through open order-book trading, while sportsbooks price futures using their own risk models and hold a built-in vig. The two rarely land on an identical number — our data shows gaps of several points are common, and occasionally exceed 7 points on a single entrant, as with Oklahoma City Thunder above.