Cohort progression — France
Median season-best times of each birth-year cohort, overlaid by age — shows how consecutive groups developed at the same stage of training.
Event: 90 beach sprintboard racesurf ski racebeach flags100 manikin carry with fins200 obstacle swimoceanman100 rescue medley200 super lifesaversurf race50 manikin carry100 manikin tow with fins200 medley50 butterfly50 breaststroke100 breaststroke