Workout

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

Set (800)
6 x 50 on 1:00
...25 kick/25 swim
8 x 25 on :30
...4 fast strokes off wall
12 x 75 on 1:20 
...25 free/25 backstroke/25 sprint

Set (1000)
5 rounds
50/50/75
1st 50 on :50 
2nd 50 faster on :40
75 SPRINT on 1:00
EZ 25 on 1:30

Set (600)
12 x 50 on :45
...descend 1-3

Cool-down (200)
100 EZ backstroke
100 EZ free