Age 39....typically running 50 to 60 miles a week. I've switched to more threshold training in the past year in an effort to get under 1:30 for a half. Last week, I ran 1:35...and I'm quite disappointed in the result.
Some workout stats....
- I have done long runs of 17, 18, and 19 miles. All of them have been around a comfortable 7:35 pace.
- I recently did 8x1000 at 6:00 pace with 1 minute standing rests.
- I also recently did 5x5 minutes at 6:06 pace with 1 minute standing rests.
- I've done 4x1000 at 5:32 pace with 2 minute jogs.
All of these workouts would lead me to believe that I was capable of running under 90 minutes....but I can only manage a 7:10ish pace for a full half basically falling apart at mile 10.
Can anyone tell me what my issue is and how to correct it?
I'm running the Chicago Marathon in the fall and I was initially targeting a 3:15...but I'm thinking 3:25 to 3:30 is more accurate at this point.