Cohort progression — Klub

Median season-best times of each birth-year cohort, overlaid by age — shows how consecutive groups developed at the same stage of training.

Sex: WomenMen Pool: 25 m pool50 m pool

Event: 50 freestyle 25 freestyle 50 breaststroke 50 backstroke 50 butterfly 100 unknown

Cohorts to compare: 2017 9 2016 17 2015 26 2014 20 2013 32 2012 28 2011 23 2010 32 2009 11 2008 6 2007 5 2006 5

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