I completed my 1st Half marathon in September 2011 in 2:33:32, (Run to the Beat – read the post here if you fancy a hit of nostalgia).
At Ealing last week I set a new PB of 2:32:33 an improvement of only 1 minute in two years, despite the fact that in that time my 5k time has improved by 4 minutes and my 10k time by 3 minutes.
According the the various race pace calculators, based on a 5k time of 31 minutes i should be able to finish a half marathon in 2:27:27 and a 10k in 1:04:37 (my current PB 1:06:26). I don’t understand why I’m so adrift at the longer distances. Am i quicker than I should be at the shorter distance? Or do I not push myself hard enough in the longer ones? I decided to try both out this weekend, so I decided to challenge myself at both the parkrun and the Cardiff HM this weekend.
Thanks to the wonderful hospitality Alma and I received from Sue and her lovely hubby, the stage was set for a great run at the Cardiff half today. We had a relaxing day (other than the 31:31 minutes of Parkrun) yesterday, I drank and ate well and got a good 8 hours sleep. I woke up this morning feeling great and VERY hopeful that I would get a PB, and decided to pace myself at 11:20 m/mile which should’ve got me round in 2:28:30. Not quite as fast as I should be but a step in the right direction.
The 1st 6 miles were a bit erratic. My garmin showed the 1st mile at 11:20 whilst we were running, but clearly that wasn’t the case – same for mile 2 which showed 11:23 on the watch.
“DNFs are also not always evenly distributed across all participants. For example, a 2009 New York Times analysis of New York City Marathon results concluded that recreational competitors were more likely to finish the race rather than be classified as DNF: “Elite runners seem more inclined to drop out rather than simply complete the race”