Cohort progression — SSP Nr 10
Median season-best times of each birth-year cohort, overlaid by age — shows how consecutive groups developed at the same stage of training.
Event: 25 freestyle25 backstroke50 freestyle50 backstroke25 breaststroke50 breaststroke50 butterfly25 butterfly
Cohorts to compare: 2018 82017 112016 162015 142014 112013 82012 92011 152010 112009 32008 82007 92006 62005 92004 82003 5