This is Week 4, Day Five.

This is our RunBlogRun Summer Mileage Program, which goes for ten weeks.

The summer mileage program is key to your development.

The miles and the hills are helping you build towards your goals of running well in cross country.

For seniors in high school and college athletes, you might want to consider adding 30 minutes of easy running on Mondays, Wednesdays, and Fridays.

Your workout today is warm-up, 50 minutes of running on trails, soft trails, and cool-down. Remember to hydrate.