Race Pace Intervals

Today I did the next run on my training schedule, which was race pace intervals.  First, I did 2 x 2 mi at 6.3 mph (9:30 min/mi), alternating with 2 x 5 min at 5.0 mph (12:00 min/mi).  Then I did 6 x 1 mi at 6.3 mph, alternating with 6 x 3 min at 5.0 mph.  This took 2:03:00, and the distance came to 12.3 mi.  This was a hard run.  It was not hard for cardio so much as hard on my legs.  Blah.  Next week is a cut-back week and the longest run on the schedule is 80 minutes, so hopefully I will rest up a bit and start feeling better with the legs.