Age and ultra-marathon performance - 50 to 1,000 km distances from 1969 – 2012

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Table 3 Multi-level regression analyses for change in age across years for the annual fastest women and men after correction for multiple finishes

Distance	β	SE ( β)	Stand.β	T	p
Annual fastest men
50 km	−0.197	0.123	−0.278	−1.610	0.117
100 km	0.136	0.058	0.321	2.321	0.025
200 km	−0.038	0.311	−0.049	−0.121	0.908
1,000 km	0.221	0.286	0.196	0.774	0.451
Annual fastest women
50 km	−0.353	0.103	−0.525	−3.434	0.002
100 km	−0.085	0.116	−0.112	−0.731	0.469
200 km	−0.331	0.254	−0.547	−1.305	0.262
1,000 km	0.170	0.238	0.244	0.711	0.497