The goal of these workouts is to develop neuromuscular coordination and "speed sense" at marathon race pace. A side benefit is an increase in anaerobic threshold.
Workouts are to be done on a hard workout day one per week for 8 consecutive weeks. Each workout consists of at least a 1 mile easy warmup run and some stretching followed by the repeats and then a 2 or more mile easy cooldown run.
Between repeats, allow complete recovery to 50% of max heart rate or lower by jogging at a very slow pace for 1/2 the repeat distance or more.
The progression increases from 5 miles at 90% of marathon goal pace to 7 miles at 100% of marathon goal pace. Marathon goal paces are given in the appendix training pace tables. To determine a 90% goal pace multiply the appendix time/mile by 1.1. For example, if your marathon goal pace is 7 min/mile your 90% goal pace is 7.7 min/mile or 7:42.
1 Mile Repeat Progression
Week 1: