48-hour world record and GOMU title
Won the GOMU championship in Pabianice with 436.371 km, ratified by the IAU as the women’s 48-hour world record and by the Polish federation as a national record.
Source-checked athlete record · Updated Oct 12, 2026
Patrycja Bereznowska
48-hour world-record holder and 24-hour world champion
Patrycja Bereznowska is a Polish multiday ultrarunner who holds the IAU women’s 48-hour world record of 436.371 km and won the 2017 IAU 24-hour world title.
PolandWieliszew, PolandWieliszew Heron TeamW50
The record so far
Patrycja Bereznowska is a Polish fixed-time and long-distance ultrarunner. Her public result record stretches from world-level 24-hour racing to Spartathlon and 48-hour competition, with championship performances across more than a decade.
At the 2025 GOMU 48-Hour World Championship in Pabianice, Bereznowska ran 436.371 km to win the women’s race and set the IAU women’s 48-hour world record, also a Polish record. She retained the GOMU 48-hour title in Cinisello Balsamo, Italy, in March 2026 with 413.396 km. She had previously won the 2017 IAU 24-Hour World Championships with 259.991 km and the 2017 Spartathlon in 24:48:18.
Her major victories span fixed-time world championships from 24 to 48 hours, IAU 24-hour European titles in 2018 and 2022, and the 246 km Athens-to-Sparta route, demonstrating sustained success across distinct ultra formats. The IAU has named her its Athlete of the Year twice, in 2017 and 2022.
Defining performances
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Two-time IAU 24-hour European champion
Won the IAU 24-hour European Championships in Timisoara in 2018 and again in 2022.
IAU 24-hour world champion
Covered 259.991 km to win the global title in Belfast.
Spartathlon winner
Completed the Athens-to-Sparta course in 24:48:18 to win the women’s race.
Performance history
| Date | Event | Performance | Result | Source |
|---|---|---|---|---|
| GOMU 48-Hour World Championship48-hour raceGOMU lists the mark as a pending W50 48-hour world record. | 413.396 km | 1st woman · 3rd overall | View ↗ | |
| Taipei 48hr Ultra Marathon48-hour race | 361.496 km | 1st woman · 5th overall | View ↗ | |
| Coast to Kosci Ultramarathon240 km road | 33:37:00 | 3rd woman | View ↗ | |
| IAU 24-Hour World Championships24-hour race | 251.371 km | 5th woman | View ↗ | |
| GOMU 48-Hour World Championship48-hour race | 436.371 km | 1st woman · women’s world record | View ↗ | |
| Spartathlon246 km road | 24:48:18 | Winner | View ↗ | |
| IAU 24-Hour World Championships24-hour race | 259.991 km | World champion | View ↗ |
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