Figure 3
From: Age group performances in 100 km and 100 miles ultra-marathons
Running speed in male 100 km age group athletes. 18-24 years (Panel A), 25-29 years (Panel B), 30-34 years (Panel C), 35-39 years (Panel D), 40-44 years (Panel E), 45-49 years (Panel F), 50-54 years (Panel G), 55-59 years (Panel H), 60-64 years (Panel I), 65-69 years (Panel J), 70-74 years (Panel K), 75-79 years (Panel L).