Workout

Warm-up (500):
2 rounds
100 swim/50drill/
100 IM

Set (600)
6 x 100s on 1:40/1:50
odds free 
evens 50 kick/50 bk  

Set (1800):
2 rounds
3 x 200 free  
...on 3:00/3:15/3:30
...d1-3
2 x 100 stroke on 2:15
...d1-2
2 x 50 kick on 1:30
...15m underwater

Cool-down (200)
200 EZ choice