Fig. 2From: The Effects of Sex, Age and Performance Level on Pacing in Ultra-Marathon Runners in the ‘Spartathlon’The percentage of change in checkpoint speed (CCS) in relation to the average race speed in men and women. Error bars depicts standard deviation. *Significant difference between men and women at p < 0.05; ** significant difference between men and women at p < 0.01; # significant difference between all other checkpoints p < 0.01Back to article page