Snapshot September 24, 2026 at 04:37 UTC · Category: Sports · Event KXNFLLASTTOLOSE-27
As of September 24, 2026 at 04:37 UTC, the leading outcome is Kansas City at 26%, followed by Buffalo at 20%, San Francisco at 15%. 737.8K contracts have traded, 22.0K in the last 24 hours.
| Outcome | Chance | 24h change | Volume | Open interest |
|---|---|---|---|---|
| Kansas City | 26% | +1 pts | 59.2K | 36.0K |
| Buffalo | 20% | · | 63.7K | 50.5K |
| San Francisco | 15% | · | 52.3K | 45.0K |
| Seattle | 14% | · | 25.2K | 21.8K |
| Cincinnati | 12% | · | 50.5K | 33.1K |
| Minnesota | 11% | -2 pts | 54.2K | 46.9K |
| Philadelphia | 6.5% | · | 23.8K | 21.6K |
| Las Vegas | 2.5% | · | 46.7K | 34.1K |
Chance = midpoint of the best Yes bid and ask on Kalshi (last trade when the spread is wider than 10¢). Volume and open interest are in contracts. Current availability, prices, close time, fees, and settlement wording must be verified on Kalshi directly before trading.
■ Kansas City ■ Buffalo ■ San Francisco · daily closing prices from Kalshi's public candlestick data
Excerpt of the contract rules from Kalshi's public market data:
“If Buffalo is the last remaining undefeated team in the 2026-27 Pro Football regular season, then the market resolves to Yes. Note: This market resolves based on the team that stays undefeated the longest, measured by the week of their first loss (not exact date/time). A tie (game result) does not count as a loss. Therefore, a team with a tie on its record is still considered undefeated if they have not lost yet. Same-Week Losses: If the last remaining undefeated teams lose in the same week of the season, they are considered tied for the purposes of this market, even if one lost on Thursday and the other Sunday of that week. Bye Weeks: A team on a bye-week is treated as still undefeated that week; if the other last undefeated team loses that same week, the team on a bye wins, regardless of what happens the following week. Multiple Teams Go Undefeated: If multiple teams finish the …”
Read the full rules and trade on Kalshi: open this market on Kalshi. How settlement works in general: Kalshi settlement guide. Costs: Kalshi fees and the payout calculator.
As of September 24, 2026 at 04:37 UTC, the leading outcome is Kansas City at 26%, followed by Buffalo at 20%, San Francisco at 15%. 737.8K contracts have traded, 22.0K in the last 24 hours.
Each outcome's probability is the midpoint between the best bid and ask for its Yes contract (or the last trade when the spread is wider than 10 cents). A 60-cent contract reads as roughly a 60% chance. The page is a dated snapshot refreshed twice a day, not a live quote.
The listed close date is January 18, 2027. Settlement follows the contract rules summarised on this page; check them on Kalshi.
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<iframe src="https://kalshiview.com/embed/markets/pro-football-last-undefeated-team/" width="100%" height="300" style="border:0;max-width:560px" loading="lazy" title="Pro Football Last Undefeated Team Kalshi odds"></iframe> <p><a href="https://kalshiview.com/markets/pro-football-last-undefeated-team/">Pro Football Last Undefeated Team odds</a> via <a href="https://kalshiview.com/">Kalshi View</a></p>
/api/v1/markets/pro-football-last-undefeated-team.json (CC BY 4.0: credit “Kalshi View” with a link).