Women’s 100m Backstroke – Long Course
World’s Fastest 100m Backstroke – Women’s Long Course
World Record: Regan Smith 57.13
Olympic Record: Regan Smith 57.28 (NEW 4 x 100 Medley Relay)
World Junior Record: Regan Smith 57.57
Commonwealth Record: Kaylee McKeown 57.33
Top 10 All-time Performers:
- Regan Smith (27.94, 29.19) 57.13
- Kaylee McKeown (28.15, 29.18) 57.33
- Kylie Masse (28.07, 29.63) 57.70
- Mollie O’Callaghan (28.17, 29.71) 57.88
- Katharine Berkoff (28.05, 29.93) 57.98
- Kathleen Baker (27.90, 30.10) 58.00
- Kathleen Dawson (28.23, 29.85) 58.08
- Gemma Spofforth (28.71, 29.41) 58.12
- Anastasia Zueva (28.13, 30.05) 58.18
- Emily Seebohm (28.57,29.66) 58.23
- Claire Curzan (28.25, 30.04) 58.29
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The chart below compares the World’s fastest 100m Backstroke swimmers. Swimmers and coaches can looks at the individual Splits, Stroke Counts and the first 50m split compared to swimmers 50m PB. All swim data has been collected from our team reviewing race footage where possible.
Woman's 100m Backstroke Long Course
| Women's 100m Backstroke - Long Course | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Regan Smith | Kaylee McKeown | Kylie Masse | Mollie O'Callaghan | Katharine Berkoff | Kathleen Baker | Kathleen Dawson | Gemma Spofforth | Anastasia Zueva | Emily Seebohm | Claire Curzan | |
| Height: | 5ft 7in 1.70m | 5ft 9in 1.75m | 5ft 8in 1.72m | 5ft 8in 1.73m | 5ft 8in 1.73m | 5ft 8in 1.72m | 6ft 1in 1.86m | 6ft 1.83m | 6ft 1.83m | ||
| Weight: | 121lb 55kg | 132lb 60kg | 134lb 61kg | 130lb 59kg | 149lb 68kg | 141lb 64kg | 161lb 73kg | 154lb 70kg | 141lb 64kg | ||
| Country: | USA | AUS | Canada | AUS | USA | USA | Great Britian | Great Britian | Russia | AUS | USA |
| DOB: | 2002-02-09 | 2001-07-12 | 1996-01-18 | 2004-04-02 | 2001-01-28 | 1997-02-28 | 1997-10-03 | 1987-11-17 | 1990-05-08 | 1992-06-05 | 2004-06-30 |
| Meet: | 2024 U.S. Olympic Trials | Swimming World Cup - Budapest Oct 2023 | Canadian Olympic Trials 2021 | 2024 Australian Swimming Trials | Olympic Games Paris 2024 | 2018 USA Summer Nationals | 2021 European Championships | 13th FINA World Championships 2009 | 13th FINA World Championships 2009 | Olympic Games London 2012 | World Aquatics Championships Doha 2024 |
| 1st 50m Split | |||||||||||
| Strokes | 35 | 35 | 35 | 35 | 33 | 32 | 34 | 33 | |||
| Split Time: | 27.94 | 28.15 | 28.07 | 28.17 | 28.05 | 27.90 | 28.23 | 28.71 | 28.13 | 28.57 | 28.25 |
| 50m PB: | 27.74 | 26.86 | 27.64 | 28.17 | 27.12 | 27.48 | 27.92 | 27.92 | 27.90 | 27.37 | 28.09 |
| Time off 50m PB: | 0.20 | 1.29 | 0.43 | 0.00 | 0.93 | 0.42 | 0.31 | 0.79 | 0.23 | 1.20 | 0.16 |
| Percentage of 50m PB: | 100.721% | 104.803% | 101.556% | 100.000% | 103.429% | 101.528% | 101.110% | 102.830% | 100.824% | 104.384% | 100.570% |
| 2nd 50m Split | |||||||||||
| Strokes | 38 | 37 | 38 | 42 | 37 | 37 | 40 | 38 | |||
| Split Time: | 29.19 | 29.18 | 29.63 | 29.71 | 29.93 | 30.10 | 29.85 | 29.41 | 30.05 | 29.66 | 30.04 |
| Total Time: | 57.13 | 57.33 | 57.70 | 57.88 | 57.98 | 58.00 | 58.08 | 58.12 | 58.18 | 58.23 | 58.29 |
Here is Regan Smith’s New World Record swim to view.
Here is Emma McKeown’s Previous 100m Backstroke World Record swim to view.
Here is a look at the Women’s 200m Backstroke Long Course All Time Rankings.
The swimming world has seen some remarkable performances in the women’s 100m backstroke, marked by outstanding records and top performances. The current World Record is held by Regan Smith with a time of 57.13 seconds, achieved with split times of 27.94 seconds for the first 50 meters and 29.19 seconds for the second 50 meters. This record showcases Smith’s exceptional speed and endurance.
The Olympic Record is held by Kaylee McKeown, who clocked 57.47 seconds, slightly slower than Smith’s world record. McKeown’s performance, however, remains formidable, especially considering her Commonwealth Record of 57.33 seconds, which she achieved with split times of 28.15 seconds and 29.18 seconds.
In the realm of junior swimmers, Regan Smith also holds the World Junior Record with a time of 57.57 seconds, demonstrating her prowess from an early age. Her split times for this record were 27.94 seconds and 29.63 seconds, indicative of her consistent performance across different stages of her career.
Examining the top 10 all-time performers provides further insight into the competitive nature of this event. Kaylee McKeown’s 57.33 seconds stands out among these performances, followed by Kylie Masse’s 57.70 seconds, achieved with split times of 28.07 and 29.63 seconds. Mollie O’Callaghan’s 57.88 seconds and Kathleen Baker’s 58.00 seconds are also notable, with Baker recording a particularly fast first 50 meters at 27.90 seconds.
Katharine Berkoff (57.99), Kathleen Dawson (58.08), and Gemma Spofforth (58.12) all follow closely, each demonstrating exceptional skill and speed. Anastasia Zueva’s 58.18 seconds and Emily Seebohm’s 58.23 seconds highlight the depth of talent in this event, while Claire Curzan’s 58.29 seconds rounds out the top 10.
These times reflect not only the individual athletic excellence of these swimmers but also the evolution and competitiveness of the women’s 100m backstroke over the years. The split times provide a detailed look at how these athletes distribute their effort across the race, with slight variations highlighting different strategies and strengths.
Note: World’s Fastest 100m Backstroke – Women’s Long Course – Update July 2024