UFC 320 weigh-in results are in, and while the majority of the card cleared the scales without issue, one fighter came in heavy. The event, headlined by Magomed Ankalaev vs Alex Pereira 2, saw both title fights made official. However, Macy Chiasson missed weight ahead of her bantamweight bout with Yana Santos, marking the only failed cut on the 14-fight lineup.
The UFC 320 official weigh-ins took place on Friday, October 3, 2025, in Las Vegas, and the results now confirm a full fight card with just one catchweight adjustment.
TL;DR – UFC 320 Weigh-In Results
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Both title fights are official — Light heavyweight champ Magomed Ankalaev and bantamweight champ Merab Dvalishvili made weight along with challengers Alex Pereira and Cory Sandhagen.
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Macy Chiasson missed weight — She came in 1.5 lbs over the bantamweight limit and will forfeit 25% of her purse to Yana Santos; their fight proceeds at catchweight.
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Full 14-fight card remains intact — Aside from Chiasson, every fighter successfully made weight, setting up a stacked UFC 320 with no cancellations.
UFC 320 Title Fights Made Official at the Scale
The weigh-ins in Las Vegas on Friday made both championship matches official. Magomed Ankalaev and challenger Alex Pereira both weighed in at 204.5 pounds for the main event. The fight for the light heavyweight title is now official!
Merab Dvalishvili, the bantamweight champion, weighed in at 135.0 pounds for the co-main event. Cory Sandhagen, the challenger, weighed in at 134.5 pounds, making their championship fight official as well.
Macy Chiasson Misses Weight Ahead of UFC 320
Macy Chiasson weighed in at 137.5 pounds for her fight with Yana Santos, which was 1.5 pounds over the non-title bantamweight limit. The rest of the UFC 320 lineup made weight without any problems.
Because of this, the fight will go on, and Chiasson will forfeit 25% of her earnings to Santos. Some individuals expressed disappointment about the weight miss, especially since Chiasson has had problems with the scale before as well.
In talks with the media, Santos said she was upset and called the weight miss “unprofessional” and “disrespectful to the sport.” The fight is still on the prelims, but the weigh-in controversy makes things even more tense for Saturday night.
UFC 320 Main Card Weigh-In Results
| Fight | Fighter A | Weight | Fighter B | Weight | Division / Notes |
|---|---|---|---|---|---|
| Magomed Ankalaev vs Alex Pereira | Magomed Ankalaev | 204.5 lbs | Alex Pereira | 204.5 lbs | Light Heavyweight Title Bout |
| Merab Dvalishvili vs Cory Sandhagen | Merab Dvalishvili | 135.0 lbs | Cory Sandhagen | 134.5 lbs | Bantamweight Title Bout |
| Jiri Procházka vs Khalil Rountree | Jiri Procházka | 206.0 lbs | Khalil Rountree Jr. | 205.0 lbs | Light Heavyweight |
| Josh Emmett vs Youssef Zalal | Josh Emmett | 146.0 lbs | Youssef Zalal | 146.0 lbs | Featherweight |
| Joe Pyfer vs Abus Magomedov | Joe Pyfer | 186.0 lbs | Abus Magomedov | 185.5 lbs | Middleweight |
UFC 320: One Weight Miss, 13 Clean Bouts
Every fighter on the UFC 320 card made weight except for Chiasson. This includes well-known fighters like Jiri Procházka, Josh Emmett, Khalil Rountree Jr, and Ateba Gautier, all of whom made weight and were ready to fight.
It’s not often that you see this level of uniformity at the scale when there are 14 fights planned. Promotions sometimes have to deal with last-minute cancellations or huge cuts, but UFC 320 went off without a hitch, with Chiasson being the only problem.
What the UFC 320 Weigh-Ins Reveal
Weigh-ins aren’t just for show; they allow you to demonstrate that you’re ready, disciplined, and occasionally even a warning sign. Ankalaev’s continuous drop to 204.5 lbs as champion proves that his camp is well maintained. Pereira is known for losing a lot of weight very rapidly. He allegedly started fight week at approximately 234 pounds, which means he had to go through a tough cut that could affect his cardio and durability on fight night.
On the other hand, Chiasson’s weight miss could mean that her body is still having problems with his conditioning or training camp. Repeated misses often result in warnings from the UFC or reduced opportunities in future bookings, in worst case, you get cut from the organisation.
Final Word Ahead of UFC 320
UFC 320: Ankalaev vs. Pereira 2 is going to be arguably one of the biggest shows of the year now that both title matches are set. The weigh-in results showed that the biggest names are ready, the gold is on the line, and only one competitor didn’t meet expectations on the scale. This event carries a lot of intricate details, considerable stakes, and has had a great buildup, with the weigh-ins done, Saturday’s action now has a green light.
