About This Market
Jessie Rosas vs.
Jessie Rosas vs. Sean King: UFC fight held on 2026-09-12. Review the historical prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.
Live prediction market odds for Jessie Rosas vs. Sean King. Compare prices across Kalshi and Polymarket US and Novig and Polymarket and ProphetX.

Resolved 2026-09-12
This market resolved on 2026-09-12. Sean King was the officially declared outcome. Prior to resolution, the market peaked at 74%.
Jessie Rosas vs.
Jessie Rosas vs. Sean King: UFC fight held on 2026-09-12. Review the historical prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.
| Candidate | ![]() | ![]() | ![]() | ![]() | |
|---|---|---|---|---|---|
Sean King III by KO/TKO/DQ | 100% | — | — | — | — |
Fight won by KO/TKO: Yes | — | — | — | 99% | — |
King to win by KO/TKO: Yes | — | — | — | 99% | — |
Under 1.5 Rounds | — | — | — | 99% | — |
Fight won by decision: No | — | — | — | 95% | — |
Over 0.5 Rounds | — | — | — | 90% | — |
Rosas to win by KO/TKO: No | — | — | — | 89% | — |
Fight won by submission: No | — | — | — | 73% | — |
Sean KingWINNER | 100% | 62% | 66% | 99% | 74% |
Fight to Go the Distance: No | — | — | — | 55% | — |
Decision / Draw / No Contest | 53% | — | — | — | — |
Over 2.5 Rounds | — | — | — | 50% | — |
Under 2.5 Rounds | — | — | — | 50% | — |
Fight to Go the Distance: Yes | — | — | — | 45% | — |
Jessie Rosas | 1% | 38% | 35% | 1% | 35% |
Fight won by submission: Yes | — | — | — | 27% | — |
Sean King III by Decision | 20% | — | — | — | — |
Sean King III to win in Round 2 | 18% | — | — | — | — |
Sean King III to win in Round 3 | 16% | — | — | — | — |
Jessie Rosas by Submission | 15% | — | — | — | — |
Jessie Rosas to win in Round 1 | 15% | — | — | — | — |
Sean King III to win in Round 1 | 14% | — | — | — | — |
Jessie Rosas by Decision | 13% | — | — | — | — |
Jessie Rosas to win in Round 3 | 13% | — | — | — | — |
Rosas to win by KO/TKO: Yes | — | — | — | 11% | — |
Under 0.5 Rounds | — | — | — | 10% | — |
Jessie Rosas by KO/TKO/DQ | 8% | — | — | — | — |
Jessie Rosas to win in Round 2 | 3% | — | — | — | — |
Draw/No Contest | 2% | — | — | — | — |
Fight won by KO/TKO: No | — | — | — | 1% | — |
King to win by KO/TKO: No | — | — | — | 1% | — |
Sean King III by Submission | 1% | — | — | — | — |
Fight won by decision: Yes | — | — | — | — | — |
Over 1.5 Rounds | — | — | — | — | — |
Sean King
80.0% avg
Official settlement criteria, resolution sources, and edge cases across Kalshi and Novig and Polymarket and Polymarket US and ProphetX.
KalshiIf Sean King III wins the King III vs Rosas professional MMA fight originally scheduled for Sep 12, 2026, then the market resolves to Yes.
The following market refers to the King III vs Rosas professional MMA fight originally scheduled for Sep 12, 2026. If this fight is postponed or delayed, the market will remain open and close after the rescheduled fight has finished (within two weeks). If the fight is declared a tie or no contest, the market will resolve to 50/50 for both fighters. If the fight is cancelled or rescheduled to over two weeks away, the market will resolve to a fair price in accordance with the rules. This market and these products have not been endorsed by Zuffa LLC, d/b/a Ultimate Fighting Championship, UFC. Any references to the “UFC,” or any other associated marks are descriptive only, and do not indicate an endorsement of this product or any affiliation between Zuffa and Kalshi.
NovigSean King in Jessie Rosas @ Sean King (UFC); settled by Novig.
If the contract cannot be settled on the stated outcome, Novig settles it at fair market value (FMV) instead of refunding it.
PolymarketThis market will resolve to "Jessie Rosas" if Jessie Rosas is officially declared the winner of the fight against Sean King at Noche UFC: Silva vs. Delgado, scheduled for September 12, 2026. It will resolve to "Sean King" if Sean King is officially declared the winner. If the fight is declared a draw or technical draw, ruled a No Contest, not scored, canceled, or postponed beyond September 26, 2026, this market will resolve "50-50." The resolution source for this market will be official information from the UFC.
Polymarket USThis market will settle to the winner of the Sean King III vs Jessie Rosas UFC fight scheduled for September 12 at 2:00PM ET. If the fight ends in a draw or is declared a no contest, the market will settle to $0.50. If the fight is cancelled before the opening bell, the market will settle to the last fair market price. If the fight is not held within two weeks of the originally scheduled date, the market will settle to the last fair market price. Outcome sourced from UFC.
Sports moneyline - resolves based on official game outcome per ProphetX Prediction Rules
The outcomes listed above show how traders are pricing this question. Compare outcome prices from Kalshi, Polymarket US, Novig, Polymarket, ProphetX in one place. Each price reflects the market’s implied probability, not a guaranteed result. This event is archived; prices shown are historical.
The last available prices are Sean King: 99.5¢ on Kalshi, 99.0¢ on Polymarket, 74.1¢ on ProphetX, 62.0¢ on Polymarket US, 65.5¢ on Novig; Jessie Rosas: 0.5¢ on Kalshi, 1.0¢ on Polymarket, 34.9¢ on ProphetX, 38.0¢ on Polymarket US, 34.5¢ on Novig. Prices are quoted in cents per $1 share. Check the venue for executable prices and available liquidity. The last available price is not necessarily the final settlement price.
The largest price difference shown across venues is 37.5 percentage points. Venues have different traders, liquidity and fees, so their prices can differ. A price gap alone does not establish an executable arbitrage opportunity; compare settlement rules and the actual buy and sell prices.
For example, Sean King at 80.0¢ implies about a 80.0% chance. For a standard $1 contract, a share pays $1 if its outcome settles as correct and $0 if it settles as incorrect. A winning share bought at 40¢ earns 60¢ before fees. Check each venue’s settlement rules, fees and eligibility before trading. Historical prices alone do not identify the winning outcome.