MEXICO CITY, 01 March 2026 – Argentinian bantamweight sensation Ailín “Fiona” Pérez has solidified her position as a premier contender in the UFC following a high-stakes weekend in Mexico. Known for her charismatic personality and dominant grappling, Pérez entered the Octagon at UFC Fight Night 268 on Saturday, 28 February, facing one of the toughest tests of her career against Macy Chiasson.
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The lead-up to the 28 February bout was marked by tension. Pérez made headlines earlier in the week by issuing a public ultimatum, stating she would refuse to fight if Chiasson failed to make the 135-pound bantamweight limit. However, the drama was settled on Friday when both athletes successfully made weight, with Chiasson hitting the mark following Pérez’s ultimatum.
As of today, 01 March 2026, Pérez is looking toward a massive year. Following the event in Mexico City, she expressed her firm belief that she will be fighting for the UFC Women’s Bantamweight Championship by the end of 2026. Currently ranked in the top 10 of the division, “Fiona” has become one of the most talked-about figures in the weight class, balancing her “brash” public persona with a relentless wrestling-heavy fighting style.
Fighter Profile and Career Statistics
Pérez, fighting out of Zárate, Argentina, has built a reputation for her “Switch” stance and high-volume striking, though her ground game remains her primary path to victory. Below are her professional vitals and career statistics as of March 2026.
| Attribute | Details |
|---|---|
| Full Name | Ailín Luciana Pérez |
| Nickname | Fiona |
| Date of Birth | 05 October 1994 |
| Nationality | Argentinian |
| Height | 5′ 5″ (165 cm) |
| Reach | 66″ |
| Stance | Switch |
| Professional Record | 12-2-0 (Prior to Feb 28 event) |
Fight History and Performance
Pérez’s rise in the UFC has been characterized by a high finishing rate and significant striking accuracy. Her statistical breakdown reflects a fighter who prefers to dictate the pace of the match through pressure.
- Striking Accuracy: 54%
- Significant Strikes Landed per Minute: 3.10
- Wins by Knockout: 4
- Wins by Submission: 2
- Wins by Decision: 6
Frequently Asked Questions
What is Ailín Pérez’s MMA record?
Entering her February 2026 bout, Ailín Pérez held a professional record of 12 wins and 2 losses. Her victories include 4 knockouts and 2 submissions, showcasing a well-rounded skill set.
Why is Ailín Pérez nicknamed “Fiona”?
Pérez adopted the nickname “Fiona” (referencing the character from Shrek) as a way to embrace her toughness and personality, often using it to contrast her “princess” appearance outside the cage with her “ogre” intensity inside it.
When is Ailín Pérez’s next fight?
Having just competed on 28 February 2026 at UFC Fight Night in Mexico City against Macy Chiasson, Pérez’s next opponent has not yet been scheduled. However, she has publicly called for a title eliminator or a championship bout later this year.
Where does Ailín Pérez train?
While originally from Buenos Aires, Argentina, Pérez has spent significant portions of her recent camps training at top-tier facilities in the United States to refine her wrestling and grappling for the UFC level.