2 Sets
4 x 400m Run @ mile pace
– 2:00 @ Recovery (walk) –
— Rest 4:00 between sets —

Flow. After each 400m repeat, recover for 2-minutes (walk)
Intent. Consistency and quality running. Hard paces but relatively long rests between repeats. Aim to make the final repeat of each set the fastest one in that set.

Score #1. avg. 400m time
Score #2. time for the final repeat of each set