Cohort progression — Camden Swiss Cottage SC
Median season-best times of each birth-year cohort, overlaid by age — shows how consecutive groups developed at the same stage of training.
Event: 100 freestyle200 breaststroke50 freestyle200 freestyle200 medley100 breaststroke400 medley50 backstroke100 butterfly400 freestyle50 breaststroke200 butterfly100 backstroke800 freestyle200 backstroke50 butterfly