Running intervals Workout

60 min
Warm up for 20 min
1.Running intervals
A. 4x400 m @ 90 s. pace
- 200 m walk rest between sets - 2.00
Times: 1.28, 1.30, 1.29, 1.28
- Rest 4-5 min
B. 5x300m @ 68 s. pace
- 150 m walk rest between sets - 1.30
Times: 1.06 1.06 1.06 1.06 1.06