UFC Fight Night 103/Phoenix official weigh-ins take place on Saturday at 11:00 a.m. ET, at the UFC host hotel in Phoenix, Arizona. The ceremonial weigh-ins and faceoff take place later on Saturday, at 7:00 p.m. ET. at Talking Stick Resort Arena in Phoenix, which will play host to the fights on Sunday.
UFC Hall of Famer BJ Penn fights rising star Yair Rodriguez in the main event.
Fighters used to weigh-in in the early evening. Unfortunately, the body does not always rehydrate within 24 hours, leaving the brain more susceptible to injury. Many fighters took IVs in an attempt to rehydrate sufficiently. However, when the UFC selected the US Anti-Doping Agency as their independent drug testing body, the use of IVs was prohibited, as it can mask the presence of PEDs. In response, the UFC has instituted a new, safer procedure, wherein fighters are given a two-hour window in which to weigh in, on the morning of the day before the fight.
Livestream of official weigh-ins courtesy of MMAjunkie:
UFC 103 weigh-in results
Main Card (FOX Sports 1 at 10 p.m. ET)
BJ Penn (146) vs. Yair Rodriguez (145)
Marcin Held (156) vs. Joe Lauzon (155)
Court McGee (170) vs. Ben Saunders (170)
John Moraga (126) vs. Sergio Pettis (125)
Prelim Card (FOX Sports 1 at 8 p.m. ET)
Augusto Mendes (135) vs. Frankie Saenz (135)
Aleksei Oleinik (242) vs. Viktor Pesta (239)
Tony Martin (155) vs. Alex White (155)
Drakkar Klose (156) vs. Devin Powell (155)
Prelim Card (UFC Fight Pass at 6 p.m. ET)
Nina Ansaroff (116) vs. Jocelyn Jones-Lybarger (115)
Walt Harris (254) vs. Chase Sherman (246)
Joachim Christensen (205) vs. Bojan Mihajlovic (205)
Cyril Asker (248) vs. Dmitrii Smoliakov (257)
