Louisville’s Kelsi Worrell Swims 5th-Fastest 100 Yard Butterfly in History in Prelims

Braden Keith
by Braden Keith 11

February 20th, 2015 ACC, College, News

Louisville junior Kelsi Worrell has swum the 5th-fastest 100 yard butterfly in the history of swimming, at any level, on Friday morning at the 2015 ACC Swimming & Diving Championships.

Her 50.38 ranks her as the third-best swimmer and as the fifth-fastest swim in history, behind only two of the heavyweights in history.

The new top 10 performances of all-time:

1. Natalie Coughlin – 50.01 (2002 NCAA Championships)
T-2. Rachel Komisarz – 50.10 (2007 Winter Nationals)
T-2. Rachel Komisarz  – 50.10 (2007 Winter Nationals)
4. Natalie Coughlin – 50.23 (2007 Winter Nationals)
5. Kelsi Worrell – 50.38 (2015 ACC Championships)
6. Natalie Coughlin – 50.39 (2011 Winter Nationals)
7. Dana Vollmer – 50.44 (2011 Arena Invitational)
8. Amanda Sims – 50.49 (2011 NCAA Championships)
9. Natalie Coughlin – 50.62 (2003 NCAA Championships)
10. Natalie Coughlin – 50.67 (2002 NCAA Championships)

There’s some very interesting connections among these swims. The Georgia Tech pool, built for the 1996 Summer Olympic Games, still shows how incredibly fast it is as it approaches its 20th birthday. Now, among the top five swims of all-time, all but Coughlin’s 50.01 U.S. Open Record was done in the Atlanta pool.

Worrell is also chasing the times of Rachel Komisarz, who was named the new head coach at Ohio before this season, but had been an assistant at Louisville for Worrell’s freshmen and sophomore seasons when Worrell went from being a 54.5 butterflier out of high school to a 51.5 at the end of her freshman season.

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bobo gigi

Impressive performance.
But why she goes so fast in prelims?
Either she gave everything this morning and that’s weird or she still has something else in the tank and we can see a new NCAA record tonight.
Answer in few hours.
Anyway, that’s cool to see the overall women’s 100 fly level wake up this season in college. We now have a lot of girls able to swim under 51.


I agree with these sentiments! It’s a funny thing that two years ago 51.5 would have almost been the winning time.
It’s also strange to me that she would be fully tapered for this meet when she clearly has obvious potential to win this event at the big meet (and had already qualified)…unless she isn’t fully tapered and we’re going to see the first women’s 100 fly under 50 seconds!

bad parent

She is not fully tapered or shaven


What’s wrong with going fast at prelims?


Why not go fast in prelims? Is giving 90-95% effort in prelims instead of going 100% really going to make a difference for your final swim–come on. Maybe she felt really good. Often times there is a lot less pressure during a prelim swim, and you swim faster because you’re more relaxed. 50.3 is moving regardless of how much effort she put forth or how fast she goes tonight.


Thank you! After all these years, Bobo still doesn’t seem to understand that champion swimmers need to go fast. They’re used to swimming 10,000+ yards a day. They can recover in 5 hours from a hundred after putting the work in.

About Braden Keith

Braden Keith

Braden Keith is the Editor-in-Chief and a co-founder of SwimSwam.com. He first got his feet wet by building The Swimmers' Circle beginning in January 2010, and now comes to SwimSwam to use that experience and help build a new leader in the sport of swimming. Aside from his life on the InterWet, …

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