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 on 27 June 2026, where Daniil Donchenko faces late-replacement Theodor Berggren. Donchenko, a 13–2 Ukrainian with eight knockout wins and a minus-470 favourite status, enters after a unanimous decision victory over Alex Morono in February. Berggren, an 8–3 Swedish debutant with a 100% finish rate, was inserted as a stand-in for Andreas Gustafsson, creating a sharp mismatch in experience and recent form[1][2].

Historical precedents for late-replacement fighters in UFC prelims show that 0% crowd-implied probability is not unusual when a seasoned finisher meets an untested debutant with no prior UFC exposure. In similar cases, such as Gustafsson’s own replacements in 2023, the market correctly priced the incumbent’s dominance, with outcomes resolving decisively within two rounds. The current 0% YES probability for Berggren aligns with this pattern, reflecting the structural disadvantage of stepping in without fight-week preparation against a proven weapon on the feet[1][2].

Traders should monitor official UFC post-fight reports for confirmation of the result, as the market resolves to Berggren only if he is officially declared the winner. Any declaration of a draw, no contest, or technical stoppage beyond July 11, 2026, triggers a 50–50 resolution. With the fight already underway, the primary catalyst is the final round outcome; Donchenko’s high finish rate and Berggren’s lack of UFC experience make a second-round TKO the most probable path, as highlighted in pre-fight breakdowns[2][6]. Official UFC coverage will provide the definitive resolution source[3].

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

Where can I trade this market with the lowest fees?

On Champions League Prediction, 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?

Champions League Prediction 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 does it cost to trade on Champions League Prediction?

Zero. Champions League Prediction 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.