Something has changed, fundamentally changed, that made it possible to run 20-miles in the time that I did today at the Runner's Edge Saturday run. Looking at running logs from my first ½ marathon in 2005 shows that my speed remained flat throughout my training. Contrast that with this year and there is something remarkable, to me anyway, as my distance increased, so did my speed.
Breaking my endurance barrier that's the only way I can describe it means being less timid about running. I used to be afraid of not being able to finish long runs, so I held back, running a safe, slow speed. Now, I've learned that if I push hard up a hill, or run hard to catch-up with someone, I can recover while running. Breaking my endurance barrier means gaining the confidence to do these things, as well having the physical stamina to do them.
It was after my two hardest runs, the Topeka half and my 16-mile run a week later, that I noticed the change. That is when I started adding hill workouts. For the first time that I can remember I was able to dig-in and cruise up hills. The hills on my route aren't monstrous, but they are long steady grades--enough to be a challenge. I was also able to add hard miles to my workout where I run faster than usual.
Shaking my fear of fatigue also gives me a more relaxed running style. I've gone from what can best be described as a rigid shuffle to, well..., actual running. My legs are looser and my arms swing more freely. I'm still a bit tight in the shoulders, but my form is evolving. I'm now free to experiment with stride length, rate of turnover, and amount of spring. Oh yeah, spring, I never had any of that before .
Today's 20-mile run was more-or-less routine. There was some drama when Lisa, the pace leader, had to slow down and fall behind when an injury to her abdominal muscle, from a fall two weeks ago, started to bother her. By then, somewhere around mile 13, there were only four of us left, and there was a lot of debate about what to do. In the end, Dan lent Lisa his cell phone and, at Lisa's insistence, we went on.
Dan and his wife, Becky, were the one's promoting Gu Roctane and Succeed S!caps last week. I gave both a try this week and I did pretty well. Dan has done 11 marathons. Becky is training for her first. I learned that they got married at the Chicago Marathon last October, the day before. Becky was the race horse today on our return leg. She kept lowering the pace under 10:00/mile. I noticed several times we were running a 9:40 pace. That eventually caught up with me. I was really huffing and puffing the last few miles. Our elapsed time was 4:29, after deciding what to do about Lisa, waiting for port-a-potties, and what not, but our time in motion was only 3:53:46. That's an average moving pace of 11:39, including walks.
Dan and Becky were a real source of inspiration coming back. I said several times that I was going to drop off to run at a slower pace, but they refused to let that happen on my first 20-mile run. They cheered me on and kept encouraging me. I really appreciate what they did.
Here is how my speed improved over the last couple of months as my distance increased:
Distance / Time in Motion / Minutes per Mile:
12.10 miles / 2:28:04 / 12:14
13.34 miles / 2:41:14 / 12:05 (Topeka half)
16.26 miles / 3:29:43 / 12:53 (snow/ice)
18.25 miles / 3:31:26 / 11:35
20.05 miles / 3:53:46 / 11:39
Basically, I've shaved about 30 40 seconds/mile off my average pace, while increasing my distance. I've got to be happy with that. I would like to see if I can improve on that a little more on my final 20-mile training run in two weeks.