TOTAL VOLUME:
$154.8b
24H VOL:
$277,138,640
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,905,404,943
412,077
Markets across
39,838
events
MATCHED EVENTS:
4,526
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Sep 26, 7:56 PM EST
Polymarket
This market tracks whether the UFC Fight Night bout between Robert Bryczek and Rodolfo Vieira will conclude with a decision or a draw. Currently, Polymarket gives a 92.0% probability to this outcome. Resolution will be based on the official results reported on https://www.ufc.com/events. Keep an eye on the official weigh-in results on September 26, 2026, as confirmation of both fighters making weight is a key indicator for the fight proceeding as scheduled and impacting the likelihood of reaching a decision.
This market will resolve to "Robert Bryczek" if Robert Bryczek is officially declared the winner of the fight against Rodolfo Vieira at UFC Fight Night: Rosas Jr. vs. Barcelos, scheduled for September 26, 2026. It will resolve to "Rodolfo Vieira" if Rodolfo Vieira is officially declared the winner. If the fight is declared a draw or technical draw, ruled a No Contest, not scored, canceled, or postponed beyond October 10, 2026, this market will resolve "50-50." The resolution source for this market will be official information from the UFC.
On Polymarket, this market is priced through a continuous auction mechanism, where traders buy and sell contracts representing their beliefs about the outcome of the Vieira vs. Bryczek fight. The price of a contract reflects the probability of that outcome occurring, as perceived by the market participants. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate, the price adjusts to reflect the collective wisdom of the crowd. The market’s efficiency is driven by the incentive for traders to accurately predict the outcome and profit from their insights.
This market resolves around Sep 27, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on the official result of the fight, as declared by the UFC. This includes determining the winner, and if the fight goes the distance, whether it exceeds 1.5 rounds. The platform will verify the results against reliable sources to ensure an accurate and fair settlement of the market.
Several factors could influence this market leading up to the fight. Any news regarding injuries to either fighter, changes in their training regimens, or even shifts in public perception based on pre-fight interviews could all impact trading activity. Unexpected betting trends in traditional sportsbooks could also cause traders to reassess their positions. Furthermore, any updates on the fighters' weight or physical condition released closer to the event could significantly move the odds in this market.