CAMPEONATO NACIONAL ABSOLUTO OPEN DE NATACIÓN (ARG)
- Wednesday, May 6th – Saturday, May 9th
- Fenaba Olympic Park, Buenos Aires, Argentina
- LCM (50m)
- Results
The 2026 Campeonato Nacional Absoluto Open de Natación is taking place in Argentina, with 18-year-old Agostina Hein continuing her recent record-breaking tear.
Taking on the final of the women’s 200m IM, versatile Hein stopped the clock at a speedy result of 2:10.63, her best-ever performance, to grab the gold.
Hein defeated the field handily, with Laila Chain representing the next-closest competitor in 2:14.08, followed by Francesca Rossi, who rounded out the podium over seven seconds later in 2:21.44.
As for Hein, her 2:10.63 performance established a new Argentine national and South American continental record. She erased the former standards of 2:10.82, which she put on the books just last month at the Argentine Junior Championships. Her former and now new records represent her first-ever forays under the 2:11 barrier.
At this competition, Hein split 30.35/30.45 (1:00.80)/39.26/30.57 to get the job done.

The teen remains ranked 15th in the world on the season.
2025-2026 LCM Women 200 IM
Yiting
2:06.82
| 2 | Kate Douglass | USA | 2:07.04 | 06/17 |
| 3 | Yu Zidi | CHN | 2:07.41 | 11/11 |
| 4 | Abbie Wood | GBR | 2:08.17 | 04/18 |
| 5 | Summer McIntosh | CAN | 2:08.21 | 03/07 |
| 6 | Jenna Forrester | AUS | 2:09.07 | 06/08 |
| 7 | Mary-Sophie Harvey | CAN | 2:09.20 | 05/27 |
| 8 | Kaylee MCKEOWN | AUS | 2:09.22 | 04/08 |
| 9 | Alex Walsh | USA | 2:09.28 | 12/04 |
| 10 | SHIHO MATSUMOTO | JPN | 2:09.39 | 03/19 |
| 11 | Ella RAMSEY | AUS | 2:09.40 | 06/08 |
| 12 | Torri HUSKE | USA | 2:09.59 | 06/17 |
| 13 | Regan SMITH | USA | 2:09.65 | 06/07 |
| 14 | Aimee Canny | RSA | 2:09.99 | 06/17 |
| 15 | Tara KINDER | AUS | 2:10.14 | 06/08 |
| 15 | Mio NARITA | JPN | 2:10.14 | 03/19 |
| 17 | Phoebe BACON | USA | 2:10.22 | 12/04 |
| 18 | Amalie SMITH | GBR | 2:10.32 | 05/25 |
| 18 | Audrey Derivaux | USA | 2:10.32 | 05/25 |
| 20 | Freya Colbert | GBR | 2:10.48 | 03/15 |
At the aforementioned Argentine Junior Championships, Hein established a remarkable six new national records.
Agostina Hein‘s National Records
- 200m free – 1:58.79, April 2026
- 400m free – 4:06.25, April 2026
- 800m free – 8:22.01, April 2026
- 100m fly – 58.83, December 2025
- 200m IM – 2:10.63, May 2026
- 400m IM – 4:34.34, August 2025
Hein is a three-time World Junior Championships medalist, having earned 800m free bronze in 2023 as just a 15-year-old, followed by 400m IM gold and 800m free silver last year in Otopeni, Romania.
At the 2024 World Championships, then 16, Hein finished 5th in the 800m free and 8th in the 400m free. She was the youngest member of the Argentine team at the 2024 Olympic Games, where she placed 18th in the 400m free and 14th in the 800m free.

Touchpad error y’all it happens just chill
Nahh, those times in fly/back.. I’m sorry but I’m not buying that..
Specifically, the backstroke leg… Her previous PB was 29.46/33.19/38.86/29.31. Your are telling me that she can go the first 50m 0.89s slower, then go 2.84s FASTER, and then just fade a little bit in the 2nd 100m compared with the previous PB??
Need to see live to believe, I´m sorry…
Il nuovo record di Agostina Hein all’Argentina Open: ha battuto il suo record nei 200m misti There isn’t her split after the fly, but Hein was well ahead of the (very promising) 15 year-old Laila Chain, whose turn appears to be 28.60. Then Chain’s backstroke gains a lot of ground and the two are near at 100m (1.00.80 vs 1.00.99)
I am inclined to doubt that fly/back split because those do not seem realistic
it was something about 28/32