Cohort progression — Switzerland
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 race100 manikin carry with fins100 manikin tow with fins100 rescue medleysurf ski race100 freestyle50 manikin carryoceanmanbeach flagssurf race200 super lifesaver50 butterfly400 freestyle200 obstacle swim