Workout

Warm-up (500)
Swim 500 choice

Set (400)
8 x 50 kick on 1:15
...no board-balance on side
100 choice drill 

Set (400)
400 pull 
...3cb on odd, 5cb on even 100's
...negative split 

Set (1500)
10 x 150 free on 2:30
...1-5 hold steady pace
...6-10 last 50 FAST

Set (200)
4 x 50 kick
...FAST
...on 1:30

Cool-down (200)
200 EZ swim