I've got a 5km race next week, did 4 x 1km off 5 mins rec yesterday, times were 2.48, 2.48, 2.48, 2.43. What pace would you suggest going out at. Just unsure, do not want to go out too fast, or too slow. PB is 15.02 but that was a few years ago. Been running 8 weeks of 70 miles. Thanks, LETSRUN. readers.