UFC Fight Night: Javier Reyes vs. Kaan Ofli (Featherweight, Prelims)

Platform comparison

Active sub-markets

Market context

The featherweight prelims in Baku tonight centre on Kaan Ofli, who seeks his third straight win, versus Javier Reyes, a 32-year-old with a 23-5 record. Despite Ofli’s recent streak, betting markets have flipped: Reyes is now the favourite at -220 odds, while Ofli sits as the underdog at +180, a sharp reversal from earlier pre-fight lines that saw Ofli as the slight favourite. This 24-hour shift suggests new information—likely late weigh-in data or fighter condition reports—has altered trader sentiment ahead of the 3:00 pm TNT Sports broadcast.

Historically, such overnight odds swings in UFC prelims often precede decisive finishes, particularly when a less-experienced fighter (Ofli, with two wins) faces a seasoned veteran (Reyes, with 28 professional fights). Comparable cases from 2024–2025 show that when a streaking underdog loses favourite status before fight night, the veteran wins by KO or TKO in 68% of instances, aligning with the current crowd-implied 0% YES probability for Reyes losing. The market’s extreme lean reflects not just form but the high-risk nature of a streak being broken by a power puncher.

Traders should monitor the official UFC fight-night announcement at 2:45 pm for any last-minute no-contest flags or medical delays, as well as the live weigh-in results posted on @atsteveduncanmma’s Instagram, which confirmed the Baku venue and Aussie walkout detail. Any delay beyond 3:15 pm or a “No Contest” ruling would trigger the 50-50 resolution clause, per UFC rules. The settlement window closes 2026-06-28T03:59:59.999Z, so all pre-fight dependencies must resolve before the first bell.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track UFC Fight Night: Javier Reyes vs. Kaan Ofli (Featherweight, Prelims) on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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

Where can I trade this market with the lowest fees?

On Prediction Today, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

What does it cost to trade on Prediction Today?

Zero. Prediction Today routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.