Fastest road run 50 kilometres (female, mixed-gender race)
- Who
- Desiree Linden
- What
- 2:59:54 hour(s):minute(s):second(s)
- Where
- United States
- When
- 13 April 2021
The fastest road run 50 kilometres (female, mixed-gender race) is 2 hours 59 minutes 54 seconds, by Desiree Linden (USA) on 13 April 2021 in Eugene, Oregon, USA.
Linden, a former winner of the Boston Marathon, became the first woman to break the 3-hour barrier for 50k – in her very first ultramarathon-distance run. She averaged 5:47 per mile, along a deserted bike path outside Eugene, Oregon, during the Brooks 50K & Marathon event. Her time was one of three inaugural 50 km records recognized by World Athletics in January 2022.