Guinness World Records has certified Lilian M. Zamora Alonso’s 639-pound hip thrust as the heaviest weighted hip thrust ever recorded by a woman. The Miami fitness coach made the lift at Miami Iron Gym on March 27, 2026, and learned it had been certified five months later.
From a Gym in Cuba to a World Record in Miami
Zamora Alonso is now a Miami-based fitness coach, but her path to the record started far from South Florida, according to WLRN. She first started lifting weights and going to the gym consistently at age 16 in her hometown of Santa Clara, Cuba, the station reports, and by the time she attempted the record she had trained for almost a decade. “I’ve been training for almost 10 years,” she said, according to Guinness World Records.
The record idea came after her husband, a fitness coach and gym enthusiast, mentioned the men’s hip-thrust mark, WLRN reports. Zamora Alonso then looked up the women’s record. Guinness World Records says the prior mark was 605 pounds, set by American Kaitlyn Callo in San Francisco in 2024.
A Grueling, Painful Build-Up
WLRN reports that preparing for the attempt required Zamora Alonso to move away from her usual 8-to-12-repetition routine and train with maximum weights. She also documented her diet, workouts and preparation in Spanish for her followers, according to Guinness World Records.
WLRN reports that Zamora Alonso reached a 670-pound personal best during training before choosing 639 pounds for the official attempt. She said she opted for the lower weight to limit recording time and the chance of mistakes. She also described improvising some upper-body workouts at home with water bottles.
Six Seconds That Made History
For the record attempt, Zamora Alonso had to hold a straight line from her knees through her hips to her shoulders for six seconds while supporting the weight. WLRN reports that she and a friend had shared recorded workouts on social media throughout her preparation.
Guinness had told Zamora Alonso to expect a response within three months, but confirmation took five, WLRN reports. During the wait, she injured her elbow and knee and continued training. The eventual email had the subject line “Congratulations, you are officially amazing”; WLRN reports that she cried when she read it.
What Comes Next
With the record secured, Zamora Alonso has shifted her focus from a specific weight to aesthetics and personal goals, WLRN reports. She has not ruled out pursuing another record or trying to exceed her own mark.
The Sports & Fitness Industry Association’s 2025 Topline Participation Report says participation increased in every activity in its strength category in 2024 for the first time since the pandemic. That national finding does not isolate women’s participation or establish a Miami-specific trend, so it offers broad context rather than an explanation of this individual record.
The achievement also drew attention on social media. An X post from @cubanoticias360
For Zamora Alonso, the certified lift marks a major achievement in a career that began in Santa Clara and continued in Miami.
