- Dana White's Contender Series: Patrick Rivera vs. Adam Darby (Welterweight, Main Card)19¢
- Fight to Go the Distance?19¢
- Will the fight be won by KO or TKO?56¢
- Will Patrick Rivera win by KO or TKO?50¢
- Will Adam Darby win by KO or TKO?57¢
- Will the fight be won by submission?62¢
- O/U 0.5 Rounds50¢
- O/U 1.5 Rounds46¢
- O/U 2.5 Rounds50¢
This market will resolve to "Patrick Rivera" if Patrick Rivera is officially declared the winner of the fight against Adam Darby at Dana White's Contender Series: Season 10, Week 4, scheduled for September 1, 2026. It will resolve to "Adam Darby" if Adam Darby 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 September 15, 2026, this market will resolve "50-50." The resolution source for this market will be official information from the UFC.
Patrick Rivera and Adam Darby headline Dana White’s Contender Series Week 4 at the UFC Apex on September 1, both entering on six-fight winning streaks in a welterweight main event with UFC contracts on the line. The 34-year-old Rivera (13-4) brings greater experience, a Shogun Fights title, and a versatile finishing record featuring five knockouts and five submissions, while the 27-year-old Irish prospect Darby (7-1) holds a four-inch height and reach edge plus recent Cage Warriors finishes by submission and TKO. Weigh-ins concluded without issue on August 31, setting up a clash between Rivera’s veteran savvy and Darby’s athletic pressure and momentum from a top European promotion.