Sunday, February 24, 2013
Race Report: Peterborough Half Marathon 2013
Original flat course:
2010 - 1:45:26
New hilly course:
2011 - 1:38:54
2013 - 1:43:18 (119/400, 23/40 M35-39, 97/223 Men)
Weight and Race Pace
Before the race, I looked at my weight journals. When I did the race in 2011, I was 174 lbs. Today I weighed in at 184 lbs, almost exactly 10 pounds heavier.
I wrote previously on the weight penalty - it supposedly works out to about 2 seconds per mile per pound of extra weight.
So for a half marathon - 13 miles - that's 26 seconds per pound. For me, at 10 pounds heavier, that's 260 seconds - 4:20.
And today I was 4:24 slower than 2011! Quite remarkable how accurate that ended up being. Sure, it could be a bit of a fluke, but it's been pretty accurate for me in the past too.
Ultimately I will take it as my run conditioning is on target from where I was a few years ago, and so it's just my excess weight that is holding me back. I'm confident I can lose 10 pounds in the next 10 weeks prior to marathon day, which should leave me lean, mean, and ready to rock.
Consistent Pace vs Consistent Effort
I had a lot of people pass me up hills today, and I passed a lot of people going down them.
My guess is that people try to keep a consistent pace throughout the race. But on a hilly course like this that's a bad strategy - it's far better to keep the effort even and let the pace fluctuate based on the terrain. Killing yourself up a steep hill may help your ego but does nothing for your overall time!
I used my perceived effort and heart rate as guides to keep things even, and it seemed to work out pretty well. I didn't quite have the oomph to finish things off right - by 19km I was pretty sacked, but mostly it worked out.