Easy Pace is typically 60-90 seconds per mile slower than average mile for a 5K race. If your 18:45 5K race is a 6 min mile pace, then your runs should be 7 to 7:30 min miles. For a 15:37 5K, 6 to 6:30 If an athlete is struggling at that pace due to fatigue, then 2 minutes slower than 5K pace is appropriate. Easy run pace is any run, including recovery running in between intervals and also including warm up and cooldown.