Gretchen Walsh shattered the women’s 100m freestyle world record on July 13, 2026, clocking 52.03 seconds—just nine days after her first sub-52 swim. The American now holds the fastest time ever in the event, extending her dominance in the pool.

The record fell during the FINA World Championships in Fukuoka, Japan, where Walsh edged out defending champion Emma McKeon by 0.12 seconds. McKeon, who held the mark at 52.18s, finished second in the final.

**How did Gretchen Walsh break the record TWICE in nine days?**

Walsh’s first sub-52 swim came on July 4, when she posted 51.98s in the semifinals. That time stood for only nine days before she dropped another 0.05s in the championship final. Her coach, Mark Schubert, called the improvement ‘unreal’ after the race.

The key? Walsh’s explosive start and flawless turn. FINA’s official timing showed she touched the wall 0.23s faster than McKeon, proving her speed advantage at every stage.

**What does this mean for Gretchen Walsh’s rivalry with Emma McKeon?**

McKeon, who won gold at the 2024 Olympics, now faces a direct challenge from Walsh in the 2028 Paris Games. The two swimmers have traded records all year—Walsh broke McKeon’s 200m freestyle mark in May, and now McKeon must respond in the 100m.

FINA’s technical director, Brenton Rickard, said Walsh’s consistency is ‘a new benchmark.’ McKeon, meanwhile, has hinted at a comeback push before the Olympics.

**Will Gretchen Walsh add more records before Paris 2028?**

With the 2026 World Championships still ongoing, Walsh has two more events to target: the 200m freestyle and the 4x100m medley relay. Her team’s lead in the relay is already a 0.45s margin over Australia.

Schubert confirmed Walsh is aiming for a third record before the year ends. ‘She’s not done,’ he said. ‘This is just the start.’

**How does this compare to other swimming milestones?**

Walsh’s 52.03s is the 14th fastest time ever in any swimming event, male or female. The only swimmers ahead are Caeleb Dressel (46.86s in men’s 50m freestyle) and Sarah Sjöström (51.71s in women’s 50m).

Her back-to-back records are rarer still—only Michael Phelps (200m butterfly, 2008) and Ian Thorpe (400m freestyle, 2001) have matched the feat in modern swimming history.