Mackenzie makes the main event OFFICIAL @MackenzieDern weighs in at 116 lbs!
[ #UFCVegas101 | LIVE tomorrow 7pmET on @ESPNPlus ] pic.twitter.com/F8SdUJVGNs
— UFC (@ufc) January 10, 2025
Editor’s note: The article has been updated at 2:35 p.m. ET on Jan. 10 to reflect the fine amounts for the heavy fighters.
The Ultimate Fighting Championship returns for its first mixed martial arts event of the year.
Headlining the UFC Vegas 101 main event is a five-round strawweight fight between Mackenzie Dern and Amanda Ribas. Both women successfully made weight, although two fighters on the undercard did not. First was Jose Johnson, who came in 2.5 pounds over the flyweight limit for his fight against Felipe Bunes. Also overweight was Ihor Potieria, who came in two pounds over the limit for his middleweight bout versus Marco Tulio. While Johnson has received a 20% fine of his overall fight purse, Potieria’s fine totals 25% of his purse.
A fan-favorite inside the Octagon, Dern (14-5) comes into the fight off a win over Lupita Godinez. This snapped a two-fight losing streak after the American lost to Amanda Lemos and Jessica Andrade. The decorated grappler holds key wins over Angela Hill, Tecia Pennington and Nina Nunes. The 31-year-old stepped on the scale weighing exactly 116 pounds.
Meanwhile, Ribas (13-5) is looking to bounce back from a defeat to Rose Namajunas. Prior to the setback, the Brazilian had won two of her last three fights, including victories over Luana Pinheiro and Viviane Araujo. The 31-year-old officially weighed 116 pounds on the dot for her second UFC main event.
UFC Vegas 101 will air live on ESPN+ in its entirety on Saturday. Prelims begin at 4 p.m. ET/1 p.m. PT, while the main card starts at 7 p.m. ET/4 p.m. PT.
UFC Vegas 101 Weigh-in Results:
Mackenzie Dern (116) vs. Amanda Ribas (116)
Carlston Harris (170) vs. Santiago Ponzinibbio (171)
Abdul Razak Alhassan (185.5) vs. Cesar Almeida (185.5)
Chris Curtis (185.5) vs. Roman Kopylov (185.5)
Austin Bashi (145.5) vs. Christian Rodriguez (145)
Uros Medic (171) vs. Punahele Soriano (171)
Felipe Bunes (126) vs. Jose Johnson (128.5)*
Ihor Potieria (188)** vs. Marco Tulio (185.5)
Thiago Moises (155.5) vs. Trey Ogden (155.5)
Preston Parsons (171) vs. Jacobe Smith (170.5)
Nicolle Caliari (125.5) vs. Ernesta Kareckaite (126)
Magomed Gadzhiyasulov (205) vs. Bruno Lopes (205.5)
Victoria Dudakova (116) vs. Fatima Kline (116)
Nurullo Aliev (155.5) vs. Joe Solecki (155)
* Johnson missed weight by 2.5 pounds and will be fined 20% of his purse.
** Potieria missed weight by two pounds and will be fined 25% of his purse.