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

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Market context

The real-world event is a welterweight preliminary bout at UFC Fight Night in Baku, Azerbaijan, where Daniil Donchenko faces Theodor Berggren on 27 June 2026. Donchenko, who recently defeated Alex Morono by unanimous decision, is favoured to win by TKO, while Berggren enters as a replacement for the injured Gustafsson[1][5]. The market currently assigns a 0% probability to Berggren winning, reflecting the strong consensus among analysts and betting platforms that Donchenko will secure the victory[1][3].

Historical precedents in UFC prelims show that replacement fighters often struggle against established opponents with recent wins, particularly when the replacement is stepping in late without the same preparation time. In similar cases, such as when fighters replaced injured contenders on short notice, the original favourite won by a significant margin in over 80% of instances, reinforcing the current 0% probability for the replacement[5][6]. This pattern suggests the market’s pricing is grounded in comparable outcomes rather than speculation.

Traders should monitor official UFC fight-night announcements, including any late changes to the bout status or fighter readiness, as well as the live broadcast schedule for Baku Crystal Hall. Recent coverage confirms the fight is set for 7:30 pm local time, with Donchenko’s official pick already favouring him[1][2]. Any deviation from the scheduled start time or a No Contest ruling would trigger the market’s 50-50 resolution clause, making these dependencies critical for accurate positioning[3].

From a regulatory perspective, German GlüStV and US CFTC frameworks govern prediction market accessibility, with 'no-KYC up to $1,500' allowing traders to participate without identity verification under specific thresholds. This provision enhances accessibility for this market, enabling broader participation while remaining compliant with cross-border regulatory requirements. The resolution source remains official UFC data, ensuring transparency and alignment with legal standards[3][4].

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 KYC 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 KYC 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.

Is this market available outside the US?

Polymarket KYC 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.

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.