Cohort progression — MKP Szczecin
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 freestyle100 freestyle400 freestyle50 backstroke100 breaststroke50 butterfly200 freestyle100 backstroke50 breaststroke200 medley100 medley100 butterfly200 backstroke200 breaststroke800 freestyle200 butterfly400 medley1500 freestyle25 unknown50 bifins
Cohorts to compare: 2018 192017 292016 802015 822014 852013 942012 702011 1002010 1012009 832008 1042007 982006 1002005 942004 802003 792002 1102001 1222000 1101999 751998 731997 481996 301995 351994 481993 131992 101991 91989 61988 31987 6
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015