Maya Gabeira of Brazil surfs on February 11 in the 2020 Nazare Challenge in Portugal. It's not clear if this is the wave on which she broke the record.
CNN  — 

Brazilian surfer Maya Gabeira has broken her own world record for the largest wave surfed by a woman.

The 33-year-old rode a 73.5-foot wave in Praia do Norte, Portugal, on February 11, beating her previous record by 5.5 feet. She made history in 2018 after surfing a 68-foot-high wave in the same waters.

“I never thought this could happen, still feels surreal,” Gabeira said in an Instagram post capturing her achievement. “To have a woman in this position in a male dominated sport is a dream come true!”

Since measuring the size of waves is difficult, teams from the University of Southern California, WaveCo Science Team and Scripps Institution of Oceanography reviewed videos of the surfer’s feat to confirm she once again broke the record, according to Guinness World Records.

The teams used scientific calculations based on real-world coordinates as well as Gabeira’s height and the length of her board to determine the measurements, the organization said.