J. Bam, T. Noakes, J. Juritz, and S. Dennis, Could women outrun men in ultramarathon races?, Medicine &amp Science in Sports &amp Exercise, vol.29, issue.2, pp.244-247, 1997.
DOI : 10.1097/00005768-199702000-00013

N. Cejka, C. Rüst, R. Lepers, V. Onywera, T. Rosemann et al., Participation and performance trends in 100-km ultra-marathons worldwide, Journal of Sports Sciences, vol.7, issue.4, 2013.
DOI : 10.1086/377590

S. Cheuvront, R. Carter, K. Deruisseau, and R. Moffatt, Running Performance Differences between Men and Women, Sports Medicine, vol.93, issue.6, pp.1017-1024, 2005.
DOI : 10.2165/00007256-200535120-00002

J. Coast, J. Blevins, and B. Wilson, Do Gender Differences in Running Performance Disappear With Distance?, Canadian Journal of Applied Physiology, vol.29, issue.2, pp.139-145, 2004.
DOI : 10.1139/h04-010

D. Fonseca-engelhardt, K. Knechtle, B. Rüst, C. Knechtle, P. Lepers et al., Participation and performance trends in ultra-endurance running races under extreme conditions - ???Spartathlon??? versus ???Badwater???, Extreme Physiology & Medicine, vol.2, issue.1, pp.15-25, 2013.
DOI : 10.1007/s00421-010-1633-1

URL : https://hal.archives-ouvertes.fr/inserm-00820834

J. Daniels and N. Daniels, Running economy of elite male and elite female runners, Medicine & Science in Sports & Exercise, vol.24, issue.4, pp.483-489, 1992.
DOI : 10.1249/00005768-199204000-00015

/. Deutsche-ultramarathon-vereinigung, E. Eichenberger, B. Knechtle, C. Rüst, T. Rosemann et al., Age and gender interactions in mountain ultra-marathon running ? the 'Swiss Alpine Marathon Ultramarathon trail running comparison of performance matched men and women, Open Access J Sports Med Med Sci Sports Exerc, vol.3, issue.40, pp.73-801681, 2008.

M. Hoffman, Performance Trends in 161-km Ultramarathons, International Journal of Sports Medicine, vol.31, issue.01, pp.31-37, 2010.
DOI : 10.1055/s-0029-1239561

M. Hoffman and K. Fogard, Demographic characteristics of 161-km ultramarathon runners, Res Sports Med, vol.20, pp.59-69, 2012.

M. Hoffman and E. Krishnan, Exercise Behavior of Ultramarathon Runners, Journal of Strength and Conditioning Research, vol.27, issue.11, pp.2939-2945, 2013.
DOI : 10.1519/JSC.0b013e3182a1f261

M. Hoffman and J. Wegelin, The Western States 100-Mile Endurance Run, Medicine & Science in Sports & Exercise, vol.41, issue.12, pp.2191-2198, 2009.
DOI : 10.1249/MSS.0b013e3181a8d553

S. Hunter and A. Stevens, Sex Differences in Marathon Running with Advanced Age, Medicine & Science in Sports & Exercise, vol.45, issue.1, pp.148-156, 2013.
DOI : 10.1249/MSS.0b013e31826900f6

S. Hunter, A. Stevens, K. Magennis, K. Skelton, and M. Fauth, Is There a Sex Difference in the Age of Elite Marathon Runners?, Medicine & Science in Sports & Exercise, vol.43, issue.4, pp.656-664, 2011.
DOI : 10.1249/MSS.0b013e3181fb4e00

B. Knechtle, C. Rüst, P. Knechtle, and T. Rosemann, Does Muscle Mass Affect Running Times in Male Long-distance Master Runners?, Asian Journal of Sports Medicine, vol.3, issue.4, pp.247-256, 2012.
DOI : 10.5812/asjsm.34547

C. Knoth, B. Knechtle, C. Rüst, T. Rosemann, and R. Lepers, Participation and performance trends in multistage ultramarathons -the 'Marathon des Sables, Extrem Physiol Med, vol.1, pp.1-13, 2003.
URL : https://hal.archives-ouvertes.fr/inserm-00788099

R. Krouse, L. Ransdell, S. Lucas, M. Pritchard, and N. Maffiuletti, Motivation, goal orientation, coaching, and training habits of women ultrarunners Age and gender interactions in ultraendurance performance: insight from the triathlon, J Strength Cond Res Med Sci Sports Exerc, vol.25, issue.43, pp.2835-2842134, 1249.

G. Machefer, C. Groussard, H. Zouhal, S. Vincent, H. Youssef et al., Nutritional and Plasmatic Antioxidant Vitamins Status of Ultra Endurance Athletes, Journal of the American College of Nutrition, vol.127, issue.4, pp.311-316, 2007.
DOI : 10.1080/07315724.2007.10719616

N. Medic, B. Young, J. Starkes, P. Weir, and J. Grove, Gender, age, and sport differences in relative age effects among US Masters swimming and track and field athletes, Journal of Sports Sciences, vol.30, issue.14, pp.1535-1544, 2009.
DOI : 10.1080/03610730590882855

A. Murray and R. Costa, Born to run. Studying the limits of human performance, BMC Medicine, vol.87, issue.6, p.76, 2012.
DOI : 10.1016/j.mayocp.2012.04.005

L. Peter, C. Rüst, B. Knechtle, T. Rosemann, and R. Lepers, Sex differences in 24-hour ultra-marathon performance - A retrospective data analysis from 1977 to 2012, Clinics, vol.69, issue.01, pp.38-46, 2014.
DOI : 10.6061/clinics/2014(01)06

W. Reinboud, Linear models can't keep up with sport gender gap, Nature, vol.431, issue.7014, p.147, 2004.
DOI : 10.1038/432147a

C. Rüst, B. Knechtle, P. Knechtle, and T. Rosemann, Similarities and differences in anthropometry and training between recreational male 100-km ultra-marathoners and marathoners, Journal of Sports Sciences, vol.41, issue.12, pp.1249-1257, 2012.
DOI : 10.1055/s-0029-1202350

C. Rüst, B. Knechtle, T. Rosemann, and R. Lepers, Analysis of performance and age of the fastest 100-mile ultra-marathoners worldwide, Clinics, vol.68, issue.5, pp.605-611, 2013.
DOI : 10.6061/clinics/2013(05)05

P. Sparling, O. Donnell, E. Snow, and T. , The gender difference in distance running performance has plateaued: an analysis of world rankings from 1980 to 1996, Medicine & Science in Sports & Exercise, vol.30, issue.12, pp.1725-1729, 1980.
DOI : 10.1097/00005768-199812000-00011

A. Teutsch, C. Rüst, B. Knechtle, P. Knechtle, T. Rosemann et al., Differences in Age and Performance in 12-Hour and 24-Hour Ultra-Runners, Adaptive Medicine, vol.5, issue.3, 2013.
DOI : 10.4247/AM.2013.ABD060

B. Whipp and S. Ward, Will women soon outrun men?, Nature, vol.355, issue.6355, p.25, 1992.
DOI : 10.1038/355025a0

M. Zingg, B. Knechtle, C. Rüst, T. Rosemann, and R. Lepers, Analysis of participation and performance in athletes by age group in ultramarathons of more than 200 km in length, Int J Gen Med, vol.6, pp.209-220, 2013.

M. Zingg, C. Rüst, T. Rosemann, R. Lepers, and B. Knechtle, Runners in their forties dominate ultra-marathons from 50 to 3,100 miles, Clinics, vol.69, issue.3, pp.605-611, 2013.
DOI : 10.6061/clinics/2014(03)11

URL : https://hal.archives-ouvertes.fr/hal-01159604

M. Zingg, C. Rüst, R. Lepers, T. Rosemann, and B. Knechtle, Master runners dominate 24-h ultramarathons worldwide -a retrospective data analysis from, Extrem Physiol Med, vol.2, pp.10-1186, 1998.
URL : https://hal.archives-ouvertes.fr/inserm-00843193