I ran my half-marathon yesterday, my first race over 10K in 5 years. It was a flat course on a mostly unpaved pedestrian path right alongside San Francisco Bay. Great views and the weather was excellent, low 40s to low 50s with almost no wind. The path has been hammered by rain and surf from storms over the past few years and isn't in the best of shape--uneven, areas of loose lossy gravel, some small water-filled potholes, small areas of mud. Not bad for an off-road course but not like running on a smooth paved road.
I had figured 2:10 was a reasonable goal and I started off with a 2:10 pace group. But almost immediately I felt like I was working way too hard. I think it was mostly the mental effort to stay with the pacer, avoid colliding with other runners on the rather narrow path, and watch carefully where I was putting my feet. I felt exhausted within three miles, and at the 4-mile mark I told myself forget it, I can't run 2:10, I need to back off and try to find a pace that feels comfortable. Remarkably, as soon as I quit trying to stay with the pacer, I relaxed and started to flow ahead of the pacer. I told myself this was perhaps a bad idea but decided to just go with the flow. So I built up a pretty good time cushion in the middle parts of the race, but I started to pay for it by 8-9 miles. I was already thinking about stopping to walk by 10 miles but kept it going until the final mile, when my calves started to cramp. I ended up taking several walking breaks in the last mile but still finished in 2:08:09 (9:47/mile). Sadly, I lost my age group to a woman who passed me with a quarter-mile to go. So I'm happy with my time, but it sure was ugly. I have another HM on my schedule in 5 weeks and I'm not sure what lessons to take away from this one, except that 2:08-ish is a reasonable goal.
I felt very tired the rest of the day. Today I have surprisingly almost no muscle soreness but it usually takes a little longer to develop, so I just jogged 2 miles this morning and will do an easy bike ride this afternoon after it warms up.
Happy and healthy running to all!