Cohort progression — Swiss Aquatics Region Zentralschweiz West

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 freestyle 50 freestyle 200 freestyle 50 butterfly 50 backstroke 100 backstroke 200 backstroke 400 freestyle 100 butterfly 50 breaststroke 200 medley 100 breaststroke 200 breaststroke 800 freestyle

Cohorts to compare: 2012 4 2011 7 2010 15 2009 13 2008 17 2007 15 2006 7 2005 3

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