This plan is for runners who can train 5 times per week. 39:00 is 6:17 per mile (3:54 per km) Training Pace Guide is a follows: Easy pace runs 7:50 - 8:40 per mile HM to Threshold pace runs 6:30 - 6:40 per mile 10K pace runs 6:15-6:25 per mile 5K pace runs 6:000-6:10 per mile 3K pace runs 5:45 - 5:55 per mile 1500 pace runs 5:20-5:30 per mile