Running intervals 19:52 [4] 5.0 km (3:58 / km)
5 sets of:
1 km @4.05 then 30 s rest
75 m acceleration run (last 50 m in 10 s) then 70 s rest
A little fast but felt good, was trying to focus on my posture and stride.
1 km times
3.58
3.59
3.56
4.00
3.59