UFC on ESPN: Reyes vs. Weidman (also known as UFC on ESPN 6) was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on October 18, 2019 at the TD Garden in Boston, Massachusetts.

[2][3] A light heavyweight bout between Dominick Reyes and former UFC Middleweight Champion Chris Weidman served as the event headliner.

[4] A featherweight bout between Zabit Magomedsharipov and Calvin Kattar was scheduled to take place at this event.

[10] At the weigh-ins, Deron Winn and Manny Bermudez missed the required weight for their respective fights.

Winn and Bermudez were fined 20% of their purse, which went to their opponents Darren Stewart and Charles Rosa respectively.