NBA championship odds 2027: Kalshi and Polymarket favourites before tip-off
The Spurs and the Thunder are close to co-favourites for the 2027 NBA title on both Kalshi and Polymarket. The full board, what the prices mean as sportsbook odds, and where each team is cheaper.
With the 2026-27 season about to tip off, prediction markets have the San Antonio Spurs and the Oklahoma City Thunder almost level as favourites for the 2027 NBA championship, each priced around 20%. Then comes a gap to the 76ers and Knicks, the East's top two.
Prices from 16 October 2026: the Polymarket "NBA: 2027 Champion" market (about $26 million traded) and Kalshi's "2027 Pro Basketball Champion". Live prices: Polymarket and Kalshi.
NBA championship odds 2027
| Team | Polymarket | Kalshi | As American odds |
|---|---|---|---|
| San Antonio Spurs | 21.5% | 22% | about +360 |
| Oklahoma City Thunder | 19.5% | 23% | about +370 |
| Philadelphia 76ers | 10.3% | 10% | about +880 |
| New York Knicks | 8.5% | 9% | about +1,050 |
| Minnesota Timberwolves | 6.6% | 7% | about +1,400 |
| Boston Celtics | 5.5% | — | about +1,700 |
| Miami Heat | 3.9% | 6% | about +1,900 |
American odds use the average of the two prices. Kalshi figures are last traded prices; you buy at the ask, which can be a cent or two higher.
What the prices mean
A price of 21.5¢ means the market gives that team about a 21.5% chance. Buy one contract at 21.5¢ and it pays $1 if they win the title, so your profit would be 78.5¢ before fees. In sportsbook terms, 21.5% is roughly +365: a $100 stake returns $365 in profit. The conversions, with a table, are in how to read Kalshi odds and Polymarket prices.
Conference odds
The conference markets are thinner but tell the same story:
- West: Spurs 34.5%, Thunder 33.5%, Timberwolves 11%, Nuggets 6.5% (Polymarket).
- East: 76ers 20.3%, Knicks 18.5%, Celtics 12.5%, Heat 11% (Polymarket).
The East is the more open conference: no team is above about one-in-five to reach the Finals.
Where each team is cheaper: Kalshi vs Polymarket
The same team often trades at different prices on the two platforms, because their order books are separate:
- Thunder: 19.5% on Polymarket against 23% on Kalshi, so backing OKC was about 3.5 points cheaper on Polymarket.
- Heat: 3.9% on Polymarket against 6% on Kalshi.
- Spurs: nearly identical on both.
Before acting on a gap, compare the ask prices and fees, not the headline numbers: on long-dated futures, a few points of difference can disappear once you pay the spread. Our spread scanner does that math for pairs listed on both platforms, and prediction market arbitrage explains when a gap is real.
Kalshi NBA Finals markets: how to find them
Kalshi lists the title market as "Pro Basketball Champion", not "NBA Finals", and uses the same generic naming across leagues. Beyond the title, both platforms list conference winners, awards and every game during the season, and Kalshi lets you combine legs into parlays: can you parlay on Kalshi or Polymarket?
Sports contracts are available on Kalshi in most states, but several states are challenging them in court; check is Kalshi legal in your state. On Polymarket, US residents use Polymarket US; the global site is for users outside the US.
How title odds move during the season
Expect the biggest moves on injuries to stars, trades before the February deadline and the first playoff seedings. A team at 20% in October is far from a lock: in a typical season, the preseason favourite wins the title less often than not. Long-dated futures also tie up money for eight months, so many traders size them small or trade in and out rather than holding to the Finals.
NBA championship odds: frequently asked questions
Who is the favourite to win the 2027 NBA championship?
The Spurs and the Thunder, each priced around 20–23% on Kalshi and Polymarket as of mid-October 2026.
Can you bet on the NBA championship on Kalshi?
Yes, through the "Pro Basketball Champion" event contracts, in states where Kalshi's sports contracts are available.
What are Polymarket's NBA championship odds?
Spurs 21.5%, Thunder 19.5%, 76ers 10.3%, Knicks 8.5% on 16 October 2026. The live market is linked above.
Why do Kalshi and Polymarket show different NBA odds?
They are separate markets with different traders, and the two sites calculate the price they display differently: Polymarket shows the midpoint between the best bid and ask, while our table uses Kalshi's last traded price.
