Thilda Haell Breaks Swedish National Record Again With 16:25.99 1500 Free

2026 Sacramento Pro Swim Series

Women’s 1500 Freestyle — Final

  • World Record: 15:20.48 – Katie Ledecky, USA (2018)
  • American Record: 15:20.48 – Katie Ledecky, USA (2018)
  • U.S. Open Record: 15:20.48 – Katie Ledecky, USA (2018)
  • Pro Series Record: 15:20.48 – Katie Ledecky, USA (2018)
  • Junior World Record: 15:28.36 – Katie Ledecky, USA (2014)

Top 8 Finishers

  1. Thilda Haell (Louisville) — 16:25.99
  2. Michaela Mattes (SAND) — 16:54.41
  3. Lily Chai (MAC) — 17:14.64
  4. Ella Legg (PLS) — 17:24.82
  5. Victoria Core (FSS) — 17:28.83
  6. Rosa Houborg (SRVA) — 17:30.53
  7. Sofia Wyzga (BC) — 17:37.29
  8. Cher Patrick (COUG) — 17:39.10

Thilda Haell swam to another record-breaking performance, posting a 16:25.99 in the final of the 1500 freestyle for the win. Haell broke her own Swedish Record in the women’s 1500 free of a 16:27.71 that she swam yesterday during prelims of the event.

Her best time and Swedish record coming into this week was a 16:39.71 that she swam in June 2025 at the Swedish National Championships. She also holds the Swedish record in the short course meters 1500 freestyle as she swam a 16:06.45 back in November 2025 at the Swedish Games.

Haell notably was 23rd in the 1500 free at the 2025 World Championships but her time from today would have moved her all the way up to 15th. Her highest finish at 2025 Worlds was 21st in the 400 free (4:16.07).

Haell just finished her freshman season at the University of Louisville. She was 7th in the short course yards 1650 freestyle in a 15:51.82 as well as 10th in the 500 free in a lifetime best 4:37.70 at the 2026 NCAA Championships.

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Ron Henderson
20 days ago

Congratulations Thilda! Fun fact, another Swedish female swimmer, Malin Nilsson, swam 16:39 already in the 90s, but it was never ratified as a Swedish record because she raced with the boys.

About Anya Pelshaw

Anya Pelshaw

Anya has been with SwimSwam since June 2021 as both a writer and social media coordinator. She was in attendance at the 2022, 2023, 2024, 2025, and 2026 Women's NCAA Championships writing and doing social media for SwimSwam. She also attended 2023 US Summer Nationals as well as the 2024 …

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