Cohort progression — MKS Neptun Stargard
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 breaststroke50 butterfly100 breaststroke100 medley100 backstroke200 medley100 butterfly200 freestyle400 freestyle200 backstroke200 breaststroke25 unknown25 freestyle25 backstroke800 freestyle200 butterfly25 breaststroke
Cohorts to compare: 2015 52014 112013 132012 72011 92010 132009 292008 262007 272006 362005 332004 272003 192002 222001 312000 401999 191998 81997 71996 5
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2013 born 2012