Workout

Warm Up (500)
500 choice swim

Set (600)
2 rounds
2 x 100 Free 1:30
50 build  :50
50 kick 1:00

Set (2100):
3 rounds
250 on 4:00
...50 drill/100 free/50 kick/50 free 
3 x 150 
…Round 1 on 2:10
…Round 2 on 2:05
…Round 3 on 2:00

Cool-down
200 EZ swim