Latest News About 100M Backstroke World Record

Updated 2026-04-17 12:04

I don’t have live access to the latest updates right now. Here’s what’s recently notable in the 100m backstroke world records:

For long course (short in meters, 50m pool): Regan Smith and Kaylee McKeown have traded world-best times in recent years, with Smith frequently challenging and equaling records in various meets, though the current official long-course world record time is held by Kaylee McKeown as of mid-2024, and Smith has matched or approached near-records in later World Cup events.[4][7]
For short course (25m pool): Regan Smith and Kaylee McKeown have both set and approached short-course records in 2024–2025 World Cup stops, with Smith notably equalling or breaking times around the mid-54s range for women in the 100m backstroke.[10][4]

If you want, I can look up the exact latest timestamped world record in both long course and short course, and provide sources. Would you like me to do that and also include a quick summary of the current record holders by gender and course?

Sources

Regan Smith equals world record in 100m backstroke, holding off Kaylee McKeown at 2025 Swimming World Cup Westmont

Australia's Mollie O'Callaghan also set a new world record in the women's 200m freestyle, clocking a 1:49.77 on Day 2 of action in Illinois.

www.olympics.com

Kathleen Baker breaks 100m backstroke world record (video)

"I watched a lot of Shark Week, so I was channeling my inner shark."

www.nbcsports.com

Regan Smith Pops Latest World Record in 100 Backstroke at World Cup in Singapore

Regan Smith lowered her world record in the short-course version of the 100 backstroke at the World Cup stop in Singapore on Friday.

www.swimmingworldmagazine.com

100m Backstroke World Record

The 100m backstroke world record is overseen and monitored by FINA, the world governing body for the sport of competitive swimming (among other aquatic sports as well including synchro, diving and water polo). Backstroke is unique in that it is the only event that is allowed to be performed on th