South Africa’s Pieter Coetze Unleashes 51.99 100 Back

2025 World University Games

21-year-old Olympian Pieter Coetze of South Africa already announced his presence at these 2025 World University Games but the man took things to an entirely new level in tonight’s 100m backstroke final.

With the medals on the line, Coetze ripped a monster effort of 51.99 to reap gold and establish a shiny new Championships Record.

Coetze’s effort also broke the African Record he set just last night in the semi-finals, a time of 52.18 which easily overtook the former World University Games Record of 52.60 Japanese Olympic icon Rysouke Irie put on the books during the 2009 supersuit era. His record prior to the meet was the 52.71 that he swam at the South African National Championships earlier this year.

Tonight, Coetze split 25.19/26.80 to get the job done, beating the field by over half a second in the process.

American William Modglin secured silver in a still-impressive 52.54 while stars n’ stripes teammate Daniel Diehl rounded out the podium in 52.94.

Splits Comparison:

Coetze’s New World University Games & African Record Coetze’s Former African Record
1st 50 25.19 25.42
2nd 50 26.80 26.76
Time 51.99 52.18

Coetze now ranks #1 in the world and his eye-popping 51.99 marker renders the 2024 World Championships 200m breaststroke bronze medalist the 8th fastest man in history.

2024-2025 LCM Men 100 Back

ThomasITA
CECCON
08/03
51.80
2 Pieter
Coetze
RSA51.8507/29
3Yohann
NDOYE-BROUARD
FRA51.9207/29
4Kliment
Kolesnikov
RUS52.0404/14
5Oliver
Morgan
GBR52.1204/17
View Top 26»

Top 10 Men’s LCM 100 Backstroke Performers All-Time

  1. Thomas Ceccon (ITA) – 51.60, 2022
  2. Kliment Kolesnikov (RUS) -51.82, 2023
  3. Ryan Murphy (USA) – 51.85, 2016
  4. Xu Jiayu (CHN) – 51.86, 2017
  5. Aaron Peirsol (USA) – 51.94, 2009
  6. Evgeny Rylov (RUS) – 51.97, 2019
  7. Hunter Armstrong (USA) – 51.98, 2022
  8. Pieter Coetze (RSA) – 51.99, 2025
  9. Matt Grevers (USA) – 52.08, 2012 & Miron Lifincev (RUS) – 52.08, 2024

For additional perspective, the South African’s new PB tonight would have grabbed Olympic gold, beating Paris champion Thomas Ceccon of Italy by .01.

Remarkably, Coetze is competing at this year’s World Championships in Singapore so we haven’t seen the last of this dynamo who is ready to take on the world.

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PFA
11 months ago

I’ve only been hearing this from other SA athletes that this is the beginning of the taper cycle for their world championship team. I’m very interested to see how Pieter will now do at worlds. Btw amazing swim for Will I was def not expecting him to drop a 52.5 and Dan to go 52.9 a lot of surprises this year and it does seem like the men’s team will likely be just fine in Singapore.

Maybe this will age well and maybe it won’t but it seems very clear Texas did not really rest for Nattys and I’m very interested in seeing how they do next week. I wouldn’t be shocked if Luke and Rex drop historically fast… Read more »

Bobthebuilderrocks
Reply to  PFA
11 months ago

Shaine and Carson too

Verram
11 months ago

If he is tapered I hope he can hold his taper travelling from Europe to Singapore in the next week or so and perform like this

Edna Mode
Reply to  Verram
11 months ago

If he can, we need to throw out the rule book about taper, traveling, changing time zones, and needing to acclimate to an area before racing.

Troyy
11 months ago

Hope he can match or better this in Singapore but I have doubts. He must’ve really wanted to add a WUGs title to his résumé.

LePatron
11 months ago

Job well done. 51.99 really spices up 100 back in the Worlds with suspense.

Thomas The Tank Engine
11 months ago

Unless Pieter Coetze plan to swim 51.5 in Singapore, I just can’t understand the wisdom to swim in Berlin fully tapered only one week before Singapore.

Natty
Reply to  Thomas The Tank Engine
11 months ago

It worked for Kaylee McKeown back in 2023.

Joel
Reply to  Natty
11 months ago

?

Swimshark1
11 months ago

On the bright side for the U.S. you got 2 youngsters who can crack 52. Might not be the greatest year for backstroke, but at least by 27 and 28 there will be a few guys.

imnottapered
Reply to  Swimshark1
11 months ago

Huh who

Just a fan
11 months ago

A fabulous swim by Modglin! Way to go!

SAMUEL HUNTINGTON
11 months ago

Wow, Mori was flying the second 100. Great 1:57.24.

About Retta Race

Former Masters swimmer and coach Loretta (Retta) thrives on a non-stop but productive schedule. Nowadays, that includes having earned her MBA while working full-time in IT while owning French 75 Boutique while also providing swimming insight for BBC.

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