Cohort progression — TP Zielona Góra
Median season-best times of each birth-year cohort, overlaid by age — shows how consecutive groups developed at the same stage of training.
Event: 50 freestyle50 backstroke100 freestyle50 butterfly100 backstroke100 medley50 breaststroke100 breaststroke200 freestyle200 backstroke100 butterfly200 medley400 freestyle200 breaststroke400 medley200 butterfly800 freestyle25 backstroke25 freestyle1500 freestyle
Cohorts to compare: 2017 122016 312015 542014 452013 262012 282011 372010 342009 162008 342007 532006 292005 212004 232003 252002 52001 62000 91998 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015 born 2014