Maycee Barber arrived on the scale half a pound over the 126-pound limit for her main event clash with Erin Blanchfield, who arrived on championship weight, at 125 pounds.
The bout will continue, as planned, with Barber forfeiting 20 percent of her fight purse to her opponent. The pair then faced off in a tense staredown, with the rivalry between the pair clear to see as the stage was set for their main event matchup.
There were also weight issues with Ketlen Vieira and Allan Nascimento, who both also missed weight and were sanctioned with fight purse forfeits.
One fight was removed from the card prior to the weigh-ins, however, with the 180-pound catchweight bout between Trevin Giles and debutant Andreas Gustafsson cancelled due to short-notice replacement Giles not getting medically cleared in time to compete.
It means the event will proceed with a 10-fight lineup. You can check the full fight card, complete with official weigh-in results, below.
UFC Vegas 104: Official weigh-in results
MAIN CARD
- Erin Blanchfield (125) vs Maycee Barber (126.5*)
- Mateusz Gamrot (156) vs Ludovit Klein (156)
- Billy Ray Goff (170) vs Ramiz Brahimaj (171)
- Dustin Jacoby (205) vs Bruno Lopes (206)
- Ketlen Vieira (146**) vs Macy Chiasson (144)
- Zachary Reese (185) vs Dusko Todorovic (186)
PRELIMINARY CARD
- Jafel Filho (126) vs Allan Nascimento (127.5***)
- Kurt Holobaugh (156) vs Jordan Leavitt (155.5)
- Bolaji Oki (155.5) vs Michael Aswell (155)
- Rayanne Dos Santos (116) vs Alice Ardelean (115.5)
* Barber weighed in above the flyweight limit. She forfeits 20% of her purse to her opponent. Fight proceeds as scheduled.
** Due to weight management issues with Ketlen Vieira, her bantamweight bout with Macy Chiasson will now be contested at featherweight. As a result, Vieira forfeits 25% of her purse to her opponent.
*** Nascimento weighed in above the flyweight limit. He forfeits 20% of his purse to his opponent. Fight proceeds as scheduled.
