Workout

Warm Up (500)
300 swim, 200 drill
100 kick

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

Set (1800)
2 rounds
Swim 3 x 50 on :45
150 build on 2:15
4 x 100 free  
...1:30( 1ez, 1 hard…)
4 x 25 on :45
…sprint

Cool-down (300)
200 choice drill
100 ez