Cohort progression — GENEVE NATATION 1885

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: 100 backstroke 200 backstroke 100 freestyle 200 medley 50 butterfly 50 freestyle 50 breaststroke 100 butterfly 200 freestyle 100 breaststroke 50 backstroke 200 breaststroke 200 butterfly 400 medley

Cohorts to compare: 2012 4 2011 3 2010 4 2009 6 2008 5 2007 5

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