Workout

Warm-up (600)
400 swim
200 pull
...3,5,7,5, CB per 50

Set (600)
4 rounds
50 kick 1:00
100 build on 1:30

Set (2000)
500 pace on 6:40
1 x 150 on 2:00
...d1-2
400 pace on 5:40
2 x 100 on 1:20
...d1-2
300 pace on 4:30
4 x 75 on 1:00
...d1-2

Cool-down (200)
200 EZ choice