Ran an easy2 miles on the treadmill to warm up. I gradually amped up the pace to 5:20 then alternated 5 min intervals with 2 min rest. Ran the first interval at 5 min pace. Felt too easy. Ran the second interval at 5 min pace with 1% incline. Felt too easy. Ran last interval at 5 min pace with 2% incline...too hard. Cooled down 2 miles at 6:30 pace. My legs are ready for Houston. Now I know I can hold 5:20's easily and can surge to sub 5 if I need to. This workout really built some confidence. | 