Ahead of the UFC on ESPN 66 event scheduled for the night of April 27th in Kansas City, all participating fighters successfully completed the official weigh-in procedure.
Main Card
- Yen Machado Gairy (171 pounds / 77.56 kg) vs. Carlos Prates (171 pounds / 77.56 kg)
- Mingyan Zhang (206 pounds / 93.44 kg) vs. Anthony Smith (206 pounds / 93.44 kg)
- Giga Chikadze (147 pounds / 66.68 kg)* vs. David Onama (146 pounds / 66.22 kg)
- Abusupiyan Magomedov (185.5 pounds / 84.14 kg) vs. Michel Pereira (186 pounds / 84.37 kg)
- Randy Brown (171 pounds / 77.56 kg) vs. Nicholas Dalby (171 pounds / 77.56 kg)
- Ikram Aliskerov (185.5 pounds / 84.14 kg) vs. Andre Muniz (185 pounds / 83.91 kg)
Preliminary Card
- Jimmy Flick (126 pounds / 57.15 kg) vs. Matt Schnell (126 pounds / 57.15 kg)
- Evan Elder (156 pounds / 70.76 kg) vs. Gage Young (156 pounds / 70.76 kg)
- John Castaneda (146 pounds / 66.22 kg) vs. Kris Gutierrez (146 pounds / 66.22 kg)
- Hailey Alateng (136 pounds / 61.69 kg) vs. DaMon Blackshear (135.5 pounds / 61.47 kg)
- Cameron Seiman (135 pounds / 61.23 kg) vs. Malcolm Wellmaker (135 pounds / 61.23 kg)
- Jacqueline Amorim (116 pounds / 52.62 kg) vs. Pollyana Viana (115.5 pounds / 52.39 kg)
- Timothy Kuamba (146 pounds / 66.22 kg) vs. Roberto Romero (145 pounds / 65.77 kg)
- Chelsea Chandler (134 pounds / 60.78 kg) vs. Joselyn Edwards (136 pounds / 61.69 kg)
