Workout of the day - Intervals of 1/3/5/3/1 mins. Two minutes easy between each interval.

WU, 5 min - 1250m
1 min - 300m (1:40.0/500)
3 min - 830m (1:48.4/500)
5 min - 1366m (1:49.8/500)
3 min - 832m (1:48.1/500)
1 min - 301m (1:39.6/500)
WD, 5 min - 1273m