UFC Vegas 123 official weigh-ins took place on Friday, October 30, 2026, ahead of the promotion's Halloween-themed fight card. One fighter missed weight by a significant margin, according to the weigh-in results released by the organization.
The identity of the fighter who missed weight and the exact amount were not immediately disclosed in the initial report. The event is scheduled to proceed as planned, with the bout likely to proceed at a catchweight or with a penalty for the fighter who missed the limit.
