Send to

Choose Destination
See comment in PubMed Commons below
Med Sci Sports Exerc. 2008 Sep;40(9):1681-6. doi: 10.1249/MSS.0b013e318177eb63.

Ultramarathon trail running comparison of performance-matched men and women.

Author information

Department of Physical Medicine and Rehabilitation, Department of Veterans Affairs, Northern California Health Care System and University of California Davis Medical Center, Sacramento, CA 95655-1200, USA.



To determine whether women matched with men for age and performance in a 50-km trail ultramarathon performed differently than the men in 80- and 161-km trail ultramarathons.


Race results from 1990 to 2007 were examined to identify finishers of the Way Too Cool 50-km Race, the American River 80-km Race, and the 161-km Western States Endurance Run in the same year. Matching of women with men for age (mean difference = 1 yr) and 50-km finish time (mean absolute variation = 1.5%) yielded 86 unique pairs from which 161-km performances were compared. A subset of 39 pairs allowed for comparison of all three races.


Mean ages of the men and women were 42-44 yr, and mean +/- SD of 50-km running speed was 152 +/- 20 m x min(-1) for both sexes. Mean +/- SD running speeds for the 80-km race (151 +/- 20 and 150 +/- 22 m x min(-1) for the women and men, respectively) and for the 161-km race (102 +/- 13 and 103 +/- 12 m x min(-1) for the women and men, respectively) were not different between the women and men.


Women and men who are matched for 50-km trail running performance also perform similarly in trail runs of 80- and 161-km distances.

[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Lippincott Williams & Wilkins
    Loading ...
    Support Center