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Noche UFC: Jessie Rosas vs. Sean King (Featherweight, Prelims)

Live odds for "Noche UFC: Jessie Rosas vs. Sean King (Featherweight, Prelims)" pulled from the Polygon order book, alongside the platform attributes of every venue that runs this contract.

O/U 0.5 Rounds 70% O/U 1.5 Rounds 60% O/U 2.5 Rounds 52% Ends before Round 3? 45% Volume: $89K Liquidity: $103K Closes: 13 Sept 2026
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Noche UFC: Jessie Rosas vs. Sean King (Featherweight, Prelims)

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Kalshi Fees) Pick
polygram.ink (preferred broker)
 70% 30% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Place a position →
Polymarket (direct)
polymarket.com
 70% 30% 0% Geo-blocked in US/UK/EU USDC, on-chain Place a position →
Kalshi
kalshi.com
 — — Up to 7% per trade US-only, KYC required USD Place a position →
Betfair Exchange
betfair.com
 — — 2-5% commission Full KYC from first trade GBP / EUR Place a position →
Manifold Markets
manifold.markets
 — — Play-money (mana) None — play-money Mana (no cash-out) Place a position →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
O/U 0.5 Rounds70%
O/U 1.5 Rounds60%
O/U 2.5 Rounds52%
Ends before Round 3?45%
Decision or Draw44%
Fight to Go the Distance?42%
Fight won by decision?42%
Fight won by KO/TKO?39%
Jessie Rosas vs. Sean King36%
King to win by KO/TKO?35%
Fight won by submission?34%
Ends before Round 2?34%
King in Round 132%
Rosas in Round 128%
King in Round 228%
King in Round 328%
Rosas to win by KO/TKO?27%
Rosas in Round 227%
Rosas in Round 326%

Market context

Market consensus: 70% chance of noche ufc: jessie rosas vs. sean king (featherweight, prelims). Prediction markets aggregate real capital to produce this probability signal. This 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…

Live Data & Statistics

The Polymarket order book prices O/U 0.5 Rounds at 70% for "Noche UFC: Jessie Rosas vs. Sean King (Featherweight, Prelims)".

O/U 0.5 Rounds 70% Other 30%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $89K.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi Fees, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Is this market available outside the US?
Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
How does resolution work?
Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
What's the difference between YES and NO shares?
A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
Do I need to KYC for this market?
On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi Fees trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
How reliable are the quoted odds?
The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
Alex ChenAlex ChenPrediction Market AnalystandJordan LeeJordan LeeSports Prediction Reporter

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