Workout

Warmup (600)
12 x 50 on :55

Set (600)
4 rounds
…50 fly/free on 1:00
…50 back/free on 1:00
…50 breast/free on 1:00

Set (1200)
200 on 3:10
4 x 50 on :50
200 on 3:05
4 x 50 on :55
200 on 3:00
4 x 50 on 1:00

Set (1600)
100=>200=>300=>400
300=>200=>100
…rest 3 red marks between