Cohort progression — SL Salos Cortile Kielce
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 freestyle50 freestyle50 butterfly50 backstroke100 breaststroke100 backstroke400 freestyle200 medley50 breaststroke200 backstroke100 medley100 butterfly400 medley800 freestyle200 butterfly200 breaststroke1500 freestyle
Cohorts to compare: 2009 52008 82007 62005 82004 42003 52002 62001 92000 101999 121998 91997 61996 51994 4