Workout

Warmup (500) 
300 swim/100 drill 
100 kick

Set (800)
2 rounds
4 x 50 on 1:30
…25 scull/25 kick  
4 x 50 on 1:15
…25 2 stroke (fly/breast)
...25 back

Set (1650)
Swim timed 1650
or
100's w/10 sec rest

Set (300)
3 x 100 IM on 1:40

Cool-down (200)
200 choice swim