Running 16:04 [4] 4.43 km (3:38 / km)
Track - 200,(45s rest), 300, (45s rest), 400, (90s rest)...(x5)
Found it alright, legs started to tire and body shape started to go off a bit from the 4th set onwards, but really really loved being back on the track.
200 times: 43, 42, 40, 40, 38
300 times: 1:08, 1:06, 1:05, 1:05, 1:04
400 times: 1:29, 1:28, 1:27 1:26, 1:25
(roughly because i didn't take splits)