Workout

Warm-up (400)
400 choice

Set (1200)
2 rounds
3 x 100 free on 1:40
...breathing every 3/every 5 by 50 
6 x 50 - 
2 kick on 1:05/2 drill on 1:00/2 stroke on :55

Set (2000)
2 rounds
10x100
1: fly/back @ 1:40
2,3: back/breast @ 1:45
4,5,6: breast/free @ 1:45
7,8,9,10: free fast @ 1:40

Set (300)
6 x 50 free
1 on 1:00
2 on:50
3 on :40

Cool-down (200)
200 EZ