Workout

Warm Up (600)
Swim 12 x 50's on :50

Set (400)
8 x 50 on 1:00
…odds- 25 kick/25 free
…evens- 25 drill/25 free

Set (1600)
2 rounds
Swim 3 x 50 on :45
150 build on 2:00
3 x 100 free  
...1:30 (d1-3) #3 FAST
200 easy on 4:00 

Set (600)
2 x 300 pull
…descend 1-2

Cool-down (200)
200 choice