Workout
- 1 x 400 free warmup
 - 1 x 400 fast backstroke on odd laps, easy freestyle on even laps
 - 1 x 400 fast breaststroke on odd laps, easy freestyle on even laps
 - 1 x 400 easy backstroke on odd laps, fast freestyle on even laps
 - 1 x 400 easy breaststroke on odd laps, fast freestyle on even laps
 - cooldown
 
Total: ? yards