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

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Market context

Polymarket is pricing **Shane Collins vs Otari Tanzilovi** at **0% YES** on the USDC-settled, Polygon-based contract, which means the market is effectively treating Collins as a near-certain loser despite the fight being booked for UFC Fight Night: Kape vs. Horiguchi. That is a very compressed view compared with the pre-fight betting line, where Collins has been listed as the favourite at around **-225** and Tanzilovi the underdog at **+185** in sportsbook markets.[1] The market settles on the UFC’s official result, so a clean win for Collins would pay the Collins side, while a draw, no contest, cancellation, or postponement beyond the deadline would push it to 50-50 under the rules.

For context, this is the kind of price that usually appears when the contract is being read through event-certainty rather than fight-odds certainty. Collins entered with the cleaner record at **7-0-0**, while Tanzilovi is **10-1-0**, and UFC stats list the bout as having gone to a **unanimous decision** in the official record.[2] In comparable MMA markets, the gap between sportsbook odds and a binary prediction contract often narrows late only when the result is already official or when traders see a strong path to one fighter being disqualified, withdrawn, or otherwise removed from the official outcome.

The main catalysts now are administrative rather than sporting: the UFC’s final bout result, any commission ruling, and whether the fight finishes inside the settlement window without being changed to a no contest or postponed. Polymarket users should watch for the official UFC post-fight declaration and any schedule updates, because the contract’s mechanics mean the on-chain position only resolves once the official source confirms the winner.[3] If the fight card shifts, the key question is whether the bout still occurs before the window closes; after that, settlement is locked to the UFC result rather than later corrections.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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 UK 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.

What does it cost to trade on Polymarket UK?

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

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, Polymarket UK triggers a quick verification flow that finishes in minutes.

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.