Track Workout (400m Intervals)

400's x 6 with jog/walk x 200m b/t
1. 1:38 / 1:33 rest
2. 1:42 / 1:32 rest
3. 1:44 / 1:53 rest
4. 1:40 / 1:47 rest
5. 1:42 / 1:40 rest
6. 1:45
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200's x 2
40 sec, 2:32 rest
42 sec