Rosa vs Perez

Who won Rosa vs Perez?

Ailin Perez beat Karol Rosa by unanimous decision in their 3 round contest during the prelims of UFC 311, on Saturday 18th January 2025 at Intuit Dome in Los Angeles.

The scorecards were announced in favor of the winner Ailin Perez.

The fight was scheduled to take place over 3 rounds in the Women’s Bantamweight division, which meant the weight limit was 135 pounds (9.6 stone or 61.2 KG).

Rosa vs Perez stats

Karol Rosa stepped into the octagon with a record of 18 wins, 6 losses and 0 draws, 4 of those wins coming by the way of knock out and 2 by submission.

Ailin Perez made her way to the cage with a record of 11 wins, 2 losses and 0 draws, 4 of those wins coming by knock out and 2 by submission.

This was Karol Rosa's 11th fight in the UFC, having made her debut for the promotion in 2019. Ailin Perez marked her 6th fight for them, having made her own debut for the promotion in 2022.

Karol Rosa's UFC record stood at 7-4-0, while Ailin Perez's came in at 5-1-0.

The stats suggested Perez had an advantage in power over Rosa, with a 36% knock out percentage over Rosa's 22%.

If the fight went to the ground, their records suggested Perez had a slight advantage over Rosa, with a 18% submission rate over Rosa's 11%.

Karol Rosa was the same age as Ailin Perez, at 30 years old.

Rosa had a 1-inch reach advantage.

Rosa was the more experienced professional fighter, having had 11 more fights, and made her debut in 2012, 6 years and 8 months earlier than Perez, whose first professional fight was in 2018. She had fought 37 more professional rounds, 68 to Perez's 31.

Rosa vs Perez form

Karol Rosa had beaten 3 of her last 5 opponents.

In her last fight before this contest, she had won against Pannie Kianzad at UFC Fight Night: Tybura vs. Spivac 2 on 10th August 2024 by unanimous decision in their 3 round contest at UFC Apex, Las Vegas, United States.

Previous to that, she had lost to Irene Aldana at UFC 296 on 16th December 2023 by unanimous decision in their 3 round contest at T-Mobile Arena, Las Vegas.

Going into that contest, she had beaten Yana Santos at UFC Fight Night – Strickland vs. Magomedov on 1st July 2023 by split decision in their 3 round contest at UFC Apex, Las Vegas.

Before that, she had been beaten by Norma Dumont at UFC Fight Night – Pavlovich vs. Blaydes on 22nd April 2023 by unanimous decision in their 3 round contest at UFC Apex, Las Vegas.

She had defeated Lina Lansberg at UFC 280 on 22nd October 2022 by majority decision in their 3 round contest at Etihad Arena, Abu Dhabi, United Arab Emirates.

Ailin Perez had beaten 4 of her last 5 opponents.

In her last fight leading up to this contest, she was victorious against Dariya Zheleznyakova at UFC Fight Night: Moicano vs. Saint-Denis on 28th September 2024 by submission in the 1st round at Accor Arena, Paris, France.

Previous to that, she had won against Joselyne Edwards at UFC 302 on 1st June 2024 by unanimous decision in their 3 round contest at Prudential Center, Newark, United States.

Going into that contest, she had beaten Lucie Pudilov at UFC Fight Night – Allen vs Craig on 18th November 2023 by unanimous decision in their 3 round contest at UFC Apex, Las Vegas.

Before that, she had defeated Ashlee Evans Smith at UFC Fight Night – Holm vs. Bueno Silva on 15th July 2023 by unanimous decision in their 3 round contest at UFC Apex, Las Vegas.

She had been defeated by Stephanie Egger at UFC Fight Night Paris on 3rd September 2022 by submission in the 2nd round at Accor Arena, Paris, France.

Activity check

In terms of activity leading into the fight, Karol Rosa had been fighting more than Ailin Perez.

Going to this contest, Karol Rosa had last fought 7 months and 2 days ago, while Ailin Perez's last outing had been 5 months and 12 days ago.

Rosa's last 5 fights had come over a period of 2 years, 4 months and 18 days, meaning she had been fighting on average every 5 months and 23 days. In those fights, she fought a total of 15 rounds, meaning that they had lasted 3 rounds on average.

Perez's last 5 fights had come over a period of 2 years, 6 months and 9 days, meaning she had been fighting on average every 6 months and 3 days. In those fights, she fought a total of 12 rounds, meaning that they had lasted 2.4 rounds on average.

What time did Rosa vs Perez start?

The fighters were expected to walk out at around 12:15 AM UTC , which was 7:15 PM EST or 4:15 PM PST on the West Coast of America, or 12:15 AM GMT in the UK.

What were the odds on Rosa vs Perez?

Karol Rosa was a 2/5 (-250) favourite going into the contest, while Ailin Perez made her way into the ring at 2/1 (+200) with oddsmakers.