UFC Vegas 122 official weigh-ins disrupted by multiple misses, including Ismael Bonfim’s 7.5-pound overage

UFC Vegas 122’s official weigh-ins were marked by three weight misses on Friday at Meta APEX in Las Vegas, an unusually messy start for a UFC Fight Night card that begins prelim action later the same day. According to the weigh-in reporting from Yahoo Sports, the biggest issue centered on Ismael Bonfim, whose bout initially faced the most serious concern after he came in 7.5 pounds over the required weight, creating a botch-level moment for the weigh-in line.

Despite the miss, the prelim fight involving Bonfim was reported to go forward after the overage. In UFC terminology, that outcome typically means the fight can proceed under modified conditions agreed by the promotion and both corners, even though a weight miss is still a competitive and procedural red flag. For Bonfim’s opponent, it also changes how the matchup is prepared for, because the final fight-day weight profile can diverge from what both camps planned during training camp.

The weigh-in issues were not isolated to one bout. Yahoo Sports described a trio of misses overall, indicating multiple fighters had trouble landing on the mark. Even when fights do not get canceled, repeated weight errors can ripple into the card’s rhythm, because UFC teams build specific game plans around expected speed, endurance, and timing that correlate with the last stages of cutting.

UFC Fight Night 290, branded as UFC Vegas 122, is the kind of event where fighters can create momentum in the division by performing well in front of a live crowd and a national broadcast audience. A weigh-in failure does not automatically determine the outcome inside the cage, but it can influence the mental edge. Fighters who make weight with discipline may enter the bout feeling organized and physically controlled, while those who miss can either refocus and adapt quickly or struggle to find their usual comfort.

Bonfim’s 7.5-pound miss, described as a “massive botch” in Friday’s weigh-in coverage, stands out because such an overage is far enough from the limit that it often changes the way a fighter must manage dehydration and rehydration between weigh-ins and fight time. That is especially important in the early portions of a Fight Night card, where the pacing and weight classes are tightly tied to speed and grappling transitions.

What to watch next is how both the impacted fighters and the rest of the card handle the remainder of fight-week execution. If any bout proceeds under modified terms after weight misses, it is often followed by heightened attention on weigh-in-to-fight-day preparation, including cardio and movement patterns in the opening round. With three misses recorded, the UFC Vegas 122 cage night may also become a case study in who can convert a chaotic weigh-in into a clean performance.