Katie Taylor raises the Irish flag after defeating Amanda Serrano at MSG on Saturday night. (Rich Graessle/Icon Sportswire via Getty Images)

The matchup between Katie Taylor and Amanda Serrano was billed as the most significant women’s boxing event in history, and the fight lived up to the hype.

Taylor of Ireland defeated Puerto Rico’s Amanda Serrano via split decision in front of a packed Madison Square Garden crowd Saturday night in the first boxing match headlined by two women at the New York venue. The victory secured Taylor the undisputed lightweight championship.

Saturday’s bout ended with both boxers visibly exhausted after throwing heavy rounds of punches into the 10th round.

Serrano looked poised to take the title in the fifth round, landing shots that left her opponent bloodied and stumbling. Taylor, however, stuck in the fight to preserve her unbeaten streak, improving her career record to 21-0 with six knockouts.

Serrano’s record now stands at 42-2-1 with 30 knockouts.

“We billed this as the biggest female fight of all time,” said Taylor’s promoter, Eddie Hearn. “And it became one of the biggest fights in boxing today. What we witnessed was one of the greatest fights in the history of Madison Square Garden.”

The MSG event was a long time coming. Initially scheduled for May 2020, the fight was postponed due to the COVID-19 pandemic.