This plan is for runners who can train 5 times per week. 50:00 is 8:03 per mile (5:00 per km) Training Pace Guide is a follows: Easy pace runs 9:50 - 10:50 per mile HM to Threshold pace runs 8:15 - 8:30 per mile 10K pace runs 8:00-8:10 per mile 5K pace runs 7:40-7:50 per mile 3K pace runs 7:30 - 7:40 per mile 1500 pace runs 6:55-7:05 per mile