Going the Distance

Monday was so great I started my run and just kept going. I ended up doing 6 miles with my pacer and we loved every mile. We just did one of the usual routes.
Daily mileage = 6
Yearly Mileage =146.1
Tuesday we did a different route that ended up being 7 miles. The route is nice because it is off a lot of the main roads and goes around Sugar House park.
Daily Mileage = 7
Yearly Mileage = 153.1
Wednesday I did the same as Tuesday.
Daily Mileage = 7
Yearly Mileage = 160.1
This week has been so great. Why not run further than usual?