UFC Rio takes place at Farmasi Arena in Rio de Janeiro, Brazil on Saturday. The event is headlined by a lightweight but between former champion Charles Oliveira and No. 8 ranked Mateusz Gamrot. This event will mark the fight promotion's 13th visit to Rio de Janeiro.
On Friday, the fighters officially weigh-in. Both main event fighters came in at 156 pounds.
BACK FOR ANOTHER MAIN EVENT @CharlesDoBronxs weighs in at 156 lbs!
— UFC (@ufc) October 10, 2025
[ #UFCRio | TOMORROW 7pmET on the @ESPN app ] pic.twitter.com/cyRL0yxHju
Short notice is not an issue for him @Gamer_MMA checks in at 156 lbs to make the #UFCRio main event OFFICIAL!
— UFC (@ufc) October 10, 2025
[ TOMORROW 7pmET on the @ESPN app ] pic.twitter.com/lov59IXNTc
Main card
Preliminary card
*Saimon Oliveira missed weight by eight pounds
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