Women’s ten-day best
Covered 1,301.591 km in the Åbybro ten-day race, ahead of Sandra Barwick’s 1,298.737 km at the top of DUV’s all-time women’s ranking.
Source-checked athlete record · Updated Oct 12, 2026
Stine Rex
Guinness six-day record holder and 48-hour world champion
Stine Rex has a Guinness-recognized six-day mark of 928.577 km, a 48-hour world title and DUV’s top women’s ten-day distance.
DenmarkW45–49
The record so far
Stine Rex is a Danish fixed-time and road ultrarunner. Guinness World Records recognizes her 928.577 km performance in Aabybro in September 2025 as the women’s six-day track record.
Her record also includes 435.564 km at the 2024 GOMU 48-Hour World Championship, which won the women’s title and went 228 metres beyond Camille Herron’s world record of the time, although the IAU never ratified it because the race had no federation permit or IAU label. In 2026 she won the 230 km TorTour de Ruhr outright in 26:38:05, then covered 1,301.591 km in the Åbybro ten-day race in August, first among women and second overall, which tops DUV’s all-time women’s ten-day list.
Published measurements for her 2025 six-day race differ slightly: DUV’s event table lists 930.006 km, while the ratified Guinness figure is 928.577 km. This profile uses the Guinness distance for record references.
The two bodies label the mark differently: Guinness World Records ratified it as a world record, while the IAU lists six-day distances as world-best performances rather than ratified world records. The IAU records table carries Rex’s 928.577 km as the current women’s six-day world-best performance, ahead of Camille Herron’s 901.768 km from 2024.
Defining performances
↗
Guinness six-day world record
Covered a ratified 928.577 km over six days in Aabybro, Denmark.
GOMU 48-Hour world champion
Won the women’s title with 435.564 km, beyond Camille Herron’s record at the time; the IAU did not ratify it because the race lacked a federation permit and an IAU label.
TorTour de Ruhr outright winner
Won the 230 km point-to-point road ultra in 26:38:05.
Performance history
| Date | Event | Performance | Result | Source |
|---|---|---|---|---|
| Åbybro 10-dagesløbTen-day road | 1,301.591 km | 1st woman · 2nd overall | View ↗ | |
| TorTour de Ruhr230 km road | 26:38:05 | 1st overall | View ↗ | |
| GOMU 48-Hour World Championship48-hour road | 211.400 km | Finisher | View ↗ | |
| 10 Days ÅbybroSix-day trackSix-day mark set within a ten-day, 1,000 km event in Aabybro; Rex completed the 1,000 km in 6 days 13 hours. | 928.577 km | Guinness world record | View ↗ | |
| GOMU 48-Hour World Championship48-hour road | 406.458 km | 2nd woman | View ↗ | |
| 6-dagesløb med SMILSix-day trackReported as a women’s six-day world record at the time, but not ratified by the IAU. | 913.606 km | 1st overall | View ↗ | |
| GOMU 48-Hour World Championship48-hour road | 435.564 km | 1st woman · 3rd overall | View ↗ |
Related coverage
Runner directory
More athlete records
Mark DowdleLast Soul Ultra 2026 champion and Arrowhead 135 winnerHendrik BouryGerman backyard record holder and elite 48-hour runnerNorman Mascher-AspensjöBack-to-back German 24-hour champion and Last Soul podium finisherMartin StillerGreenLoop winner and Last Soul final-five runnerAyyoub El OsroutiLast Soul assist and Germany’s No. 2Harvey LewisTwo-time Big’s champion, US backyard record holder and Badwater 135 winner