UFC Fight Night: Marcin Tybura vs. Aleksandar Rakic (Heavyweight, Main Card)

Platform comparison

Market context

Polymarket is pricing Marcin Tybura at **24% YES** on USDC collateral, with the contract settled on Polygon via conditional tokens if the UFC officially declares him the winner, while a draw, no contest, cancellation, or postponement beyond 15 August falls into the 50-50 bucket. In practical terms, that means the current market sits well below a coin-flip and is leaning towards Aleksandar Rakić being the more likely official winner.[15]

The read-through from comparable pricing is consistent with that discount. Several pre-fight analyses and sportsbook comparisons have had Rakić as the favourite, with implied win probabilities around the mid-70s to low-80s, while Tybura is typically framed as the underdog despite his deeper heavyweight résumé and better grappling volume.[7][11][12][15] Tybura’s case is that he brings more UFC experience, more takedown attempts and a credible clinch route, but the market has largely prioritised Rakić’s sharper striking output and takedown defence.[2][9][13][14]

The main catalysts for traders are the official fight announcement, any late change to the bout order or card status, and the result itself as published by the UFC. Recent preview coverage has treated the matchup as scheduled for UFC Fight Night in Belgrade, and the market will only resolve on the UFC’s own official call, so any discrepancy between media previews, sportsbook numbers and the final result is resolved by the official decision rather than pre-fight consensus.[5][7][12] For Polymarket users, the key mechanics are simple: hold USDC, buy or sell the conditional token, and watch for any scheduling disruption that could push the market into a 50-50 settlement instead of a fighter win.[15]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews UFC Fight Night: Marcin Tybura vs. Aleksandar Rakic (Heavyweight, Main Card) across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Alternative UK, which mirrors 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?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Alternative UK. 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.

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.