Most Sunday’s I am out early at the track getting my weekly “long” run in of a little more than four miles.  I have been covering that distance for awhile.  What I don’t understand is why if I can run four miles on a Sunday, why do two miles on the treadmill on a Wednesday feel nearly as difficult?  The 2.25 miles I covered today as part of my brick just felt uncomfortable the entire time.

Today’s Workout 

Run/Ride Brick

20 minute run – 2.25 miles

10 minute stationary bike – 3.13 miles