TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 26, 11:17 PM EST
Polymarket
This market will resolve to "Raoni Barcelos" if Raoni Barcelos is officially declared the winner of the fight against Raul Rosas Jr. at UFC Fight Night: Rosas Jr. vs. Barcelos, scheduled for September 26, 2026. It will resolve to "Raul Rosas Jr." if Raul Rosas Jr. 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.
This market will resolve to "Raoni Barcelos" if Raoni Barcelos is officially declared the winner of the fight against Raul Rosas Jr. at UFC Fight Night: Rosas Jr. vs. Barcelos, scheduled for September 26, 2026. It will resolve to "Raul Rosas Jr." if Raul Rosas Jr. 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.
Often, prediction market odds reflect a different perspective than those found at traditional sportsbooks. Sportsbooks set lines to balance action and incorporate a profit margin, while this market represents the collective wisdom of traders who are incentivized to be accurate. You may find that the probabilities implied by this market diverge from sportsbook odds, particularly if there's significant public information or a strong consensus forming among traders. This difference can arise from varying levels of expertise, access to information, or simply differing interpretations of the available data.
On Polymarket, this market is priced through a continuous auction mechanism. Traders buy and sell shares representing different outcomes of the Barcelos vs. Rosas Jr. fight, and the price of these shares fluctuates based on supply and demand. As more people buy shares in a particular outcome, its price increases, reflecting a higher implied probability. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market price essentially represents the crowd's assessment of the likelihood of each outcome, constantly updating as new information becomes available or opinions shift. This dynamic pricing is what makes prediction markets so insightful.
This market resolves around Sep 27, 2026, with the outcome confirmed once the official result of the Barcelos vs. Rosas Jr. fight is verifiable from credible public reporting. The market will settle based on the official decision announced by the UFC, whether that be a win by knockout, submission, or decision. The platform will then determine the winning share(s) and distribute payouts accordingly. It’s important to note that the official UFC result is the sole determinant of the market’s resolution.
Several factors could significantly impact this market. Any news regarding injuries to either fighter, changes in their training regimens, or even pre-fight press conference statements could shift trader sentiment. Unexpected betting trends or analysis from MMA experts could also influence the odds. Furthermore, as the fight draws closer, the volume of trading is likely to increase, potentially leading to more volatile price movements. Keep an eye on reputable MMA news sources and analyst predictions for potential catalysts that could move this market before Sep 27, 2026.