Resultsīoth women and men slowed down through the first 7 checkpoints but increased running speed towards the end of the race (reverse J-shaped pacing). Finally, the average change in checkpoint speed (ACCS) was calculated for each participant as a mean of the 10 CCSs. Furthermore, to assess the pacing strategy of each runner, the percentage of change in checkpoint speed (CCS) in relation to the average race speed was calculated (for each of 10 checkpoints). Average running speed was calculated for each participant and the average checkpoint running speed for each of the 10 race checkpoints. We selected 10 checkpoints with split times corresponding to important race sections. MethodsĪ total of 2598 runners (2255 men and 343 women) finishing ‘Spartathlon’ between 20 were analysed. The aim of the present study was to analyse the pacing of female and male finishers competing in the ‘Spartathlon’ in regards to their age and performance groups. Pacing has been investigated in different kinds of ultra-marathon races, but not in one of the toughest ultra-marathons in the world, the ‘Spartathlon’.
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