Prairie State Marathon
3:47:07 (8:43/mile) 164 Avg HR
Some worries the day before: Friday afternoon/evening lower GI issues that felt more like a virus than nerves (which weren't an issue). But a straight seven hours sleep, and I seemed (and was) fine this a.m. Conditions not great, though, as Juxt noted. Low 60 temps, and humidity around 80% with a front moving in by around noon. Overall, this paralled the first marathon in the sequence, both in conditions (60 degree temps and high humidity) and results (3:47 vs. 3:44 up in Wisconsin).
I ran very comfortably through the first half of the race, averaging 7:58/mile through 10, and about 8:00/mile at the half-marathon point. However, the HR was running higher than desired. I need to keep the HR in the 150s early on, and even mile 2 came in at 160. By mile 4, the HR was 161 and steadily climbing. I suppose I could have slow-stepped the pace, but as noted, I was floating along comfortably. It was just a warm, humid day. I hit a 170 HR avg in mile 16 (with a pace, now, of about 8:22/mile). This was not the race I was looking for.
I bonked in mile 20. But what followed was interesting and informative. My avg HR through mile 19 was 166, and then:
mile 19 - 175 HR, 8:37/mile
mile 20 - 170 HR, 9:45/mile
This was at the same perceived effort. When the bonk "hit," my HR actually dropped to about 168. It's as though my body/mind looked at that 166 HR and made a Gandolf-ish conclusion: "You Shall Not Pass!" It's like my system said, hey, 166 is about your limit here. Don't exceed it.
While frustrating for a mile or so, I then concluded I could use this as a guide to continuing rather than random walks and negative thoughts. What I did over the final six miles was run (slowly) until the HR got to around 165-166. I'd walk until it dropped to the low/mid-150s, then run until I hit the mark again. The next five miles were slow (10/mile+), but not frustrating. I knew I was cooked. This gave me a controlled way to forge on and limit the number and length of walks. As with Apollo 13, this was to me a "successful failure."
Never fun to bonk, but it was interesting to use the HR data, in a different way, over the final miles. My daughter was out with me, and she did a great job of getting around the course and keeping me stocked with fluids (they had a couple gel stops on the course, plus my own supply). So enjoyable to share the day with her (and to let her drive). And: So glad to be done with marathons for a while. Prosopis, I only un-retired because of the Boston events. I'll do Boston again in 2015 'cause I can. But I have no trouble putting this distance behind me.