Workout

Warmup (600)
2 rounds
4 x 50 
100 kick
...10 seconds rest between

Set (600)
8 x 75 on 1:15
Odds: free/drill/free 
Evens: free/stroke/free
…IM order

Set (600)
2 rounds
4 x 75 switch IM on 1:20
…fly/back/breast
…back/breast/free
...breast/free/fly
…free/fly/back

Set (1400)
14 x 100 on 1:30
…1 free; 1 IM
…1 free; 2 IM
…1 free; 3 IM
…1 free; 4 IM

200 cool down