Cohort progression — Pływacki Klub Sportowy "ORKA" Herby
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 backstroke25 backstroke25 freestyle50 butterfly50 breaststroke100 freestyle100 medley25 breaststroke
Cohorts to compare: 2020 32019 42018 82017 232016 112015 242014 222013 142012 142011 132010 52008 42007 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2017