Cohort progression — Żyrardowskie Powiatowe WOPR
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 manikin carry50 manikin carry with fins100 manikin carry with fins100 manikin tow with fins50 manikin tow with fins100 obstacle swim50 unknown100 unknown200 obstacle swim50 rescue medley
50 m manikin carry men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2013