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

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Market context

The fight is a scheduled featherweight bout on the UFC Fight Night prelims, so the cleanest programmatic read is to treat the market as a binary win/loss contract unless UFC officiating turns it into a no-contest or a cancellation. Official UFC stats already list the matchup as a three-round featherweight decision win for Shane Collins over Otari Tanzilovi, which means a live feed keyed to UFC’s result output would have had to flip away from 0% YES as soon as the result posted.[6]

Historical market handling on similar UFC fight contracts usually starts with pre-fight pricing, then collapses around one of two signals: the official bout result or a disruption to the card. On public odds screens, Collins was posted as the betting favourite at -225, with Tanzilovi at +185, while preview writes pointed in opposite directions, one backing Collins’ cleaner boxing and another calling Tanzilovi the pick.[2][1] For a bot or copy-trading workflow, that sort of split is less important than whether the fight actually reaches an official result; a confirmed draw, technical draw, no contest, cancellation, or postponement beyond the settlement window would force a 50-50 outcome under the market rules.[5]

The main catalysts to watch are the UFC’s bout-status updates, the official fight-card schedule, and the result upload after the prelim ends, because those are the only inputs that should drive an automated settlement model here.[3][5] Secondary signals, such as sportsbook movement or preview consensus, can be useful for pre-event calibration but should not override the official source once the bout is under way. In practical tooling terms, this is a short-dated event contract: if the market has not already resolved from UFC’s published result, a scheduler should still poll for late card changes right up to the July 4 fallback deadline in case the contest is moved, ruled no contest, or otherwise left without a scoring outcome.[5]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews UFC Fight Night: Otari Tanzilovi vs. Shane Collins (Featherweight, Prelims) across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Polymarket App UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket App UK, 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.

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 App UK triggers a quick verification flow that finishes in minutes.