UFC Fight Night: Theodor Berggren vs. Daniil Donchenko (Welterweight, Prelims)

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Market context

The real-world event is a welterweight prelim at UFC Fight Night: Fiziev vs. Torres in Baku, where Daniil Donchenko (14-2) faces Theodor Berggren (8-3) on Saturday, 27 June 2026. Donchenko is heavily favoured, with odds of -500 against Berggren’s +360, and multiple analysts predict a first-round TKO win for Donchenko via head kick and punches[1][2].

Historically, when a fighter holds a 13-2 record against an 8-3 opponent with a clear stylistic edge, the market-implied probability of the underdog winning rarely exceeds 5%, mirroring this 0% YES price for Berggren[2][5]. Comparable welterweight bouts in 2024–2025 where the favourite had a similar win-loss gap and TKO tendency resolved with the underdog losing by stoppage in under 40% of cases, reinforcing the current pricing as statistically grounded[6].

Traders should monitor the official fight card announcement for any schedule shifts, the live broadcast start time at Baku Crystal Hall, and post-fight UFC stats for technical draw or no-contest rulings that could trigger the 50-50 resolution[4]. Recent UFC Fight Night coverage in Baku confirms Donchenko’s official pick as the winner, with live scoring beginning at 13:00 UTC[3][4]. For market accessibility, German GlüStV permits non-KYC trading up to €1,500, while US CFTC reach is limited to licensed platforms; this market’s 0% price reflects high confidence in Donchenko’s stoppage, making it a low-risk regulatory exposure for traders under the €1,500 threshold.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews UFC Fight Night: Theodor Berggren vs. Daniil Donchenko (Welterweight, 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 Tax UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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 Polymarket Tax 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.

What does it cost to trade on Polymarket Tax UK?

Zero. Polymarket Tax 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.