Workout

Warm-up (600)
2 rounds
100 swim/100 drill/100 kick

Set (600)
12 x 50 on 1:00 
1-6 (25 hard/25 easy) 
7-12 (25 easy/25 hard)
 
Set (1000)
350 free/50 fly
250 free/50 back 
150 free/50 breast
100 free 
…rest 20 sec. 
...on 15 min. 
 
Set (600)
2 x 300 pull 
…25 right side/25 left side breathing 

Cool-down (200)
200 choice