UFC Fight Night: Otari Tanzilovi vs. Shane Collins (Featherweight, Prelims)

Platform comparison

Active sub-markets

Market context

Otari Tanzilovi’s featherweight bout with Shane Collins is now a live UFC prelim contract, but the current **0% YES** crowd read is strikingly far from the fight pricing in the wider market. FanDuel has posted only a very longshot “gone in 60 seconds” prop at **+2000** for either fighter to win inside the first minute, while DraftKings’ preview set the total at **2.5 rounds** with the over favoured at **-154** and the under at **+120**, which points to a more measured fight than the prediction market is implying. [1][2] Tapology also lists the matchup as a featherweight prelim, and UFC.com identifies Tanzilovi’s UFC debut coming against Collins on 20 June. [3][5]

Comparable debut-vs-debut or debut-vs-established-circuit match-ups often produce wider pricing gaps than the market implies, because sportsbooks can still shade for finish equity and method uncertainty while prediction markets may lag until line movement or official confirmation arrives. Collins is being framed as the more settled quantity on some outside coverage, with reports describing him as a **7-0** fighter and A1 Combat featherweight champion, while Tanzilovi enters at **10-1** with seven knockouts and a DWCS-to-UFC profile. [4][5][2] That combination usually keeps analyst consensus more balanced than a zero-priced crowd line would suggest. [2][4]

For traders, the key catalysts are the UFC’s final official result, plus any late changes to the fight status, weight, or card order before the settlement window closes. The bout was listed for UFC Fight Night on 20 June in Las Vegas, and UFC stats pages show at least one result record tied to the pairing, so confirmation of whether that page reflects the official outcome, a cancelled listing, or a completed contest matters for resolution. [3][9] If the fight is changed to a no contest, draw, cancellation, or postponement beyond 4 July, the market resolves **50-50** rather than to either fighter.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track UFC Fight Night: Otari Tanzilovi vs. Shane Collins (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

Is this market available outside the US?

Best Prediction Markets is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Best Prediction Markets triggers a quick verification flow that finishes in minutes.