On Monday I ran my third ever 10 mile race (16.1km for the metric folk out there). I ran my first 10 miler in September 2009, in a time of 2:02:00. The second was last September, in preparation for the half marathon, and I finished in 2:09:51. On that basis, my run yesterday, which I finished in 1:57:48 was a success, since I managed to set a new PR, but in reality, I should have been able to run it in an easy (consistent) pace and finish in 1:52, with a lot less effort than it actually took me.
Weather
First of all, there was one aspect which was out of my control, and that was the weather. After a couple weeks of near constant rain, which is continuing today, Monday was a flash in the pan hot day with temperatures reaching 22C. The unexpected heat was not helped by the fact that the race was scheduled for 3pm, during the hottest part of the day. Generally speaking I don’t tolerate heat well, as evidence by how much more I struggled in Tel Aviv and Arnhem and this last run as compared to other runs at similar distances.
I did my best to drink regularly, but not having my own water, I was limited by what was on offer at the race – two water stations, one of which had closed shop before I arrived at it for the start of my final loop, and arguably, just when I needed it most, being both thirsty and also rather disheartened by setting out for my last lap when I couldn’t see any runners ahead of me, and I could hear runners finishing behind me.
I had thought about taking my Camelbak, and with hindsight, I wish I’d stuck to that plan. I’ve never run with it before, though, so I was nervous about it making its debut on such a long run. Given the temperature, I would no doubt have suffered a little from having something on my back, but on the other hand, the extra hydration would have probably compensated for that.
I also think that it would have been good to have some electrolyte tablets with me. I’ve finished my small stock of Nuun, and I haven’t been able to get a hold of any more, so that was a practical difficulty. It’s a shame that the race organizers only had water on hand.
Pacing
My plan was to run the race at as an easy long run, and I didn’t hold myself to that. This is, fundamentally, the problem with treating races as long runs, especially when you’re as slow as I am. Holding yourself back at the start is hard.
I ran the first km in 5:50. That’s not much slower than my 5K race pace, so harder than I should have started if I really wanted to race the course (according to Daniels running tables, my 10mile race pace should be 6:05), and definitely too hard for an ‘easy 16K’.
This graph shows my 1km split times for Monday’s race, along with some of the other races I’ve done at similar distances. As you can see, my speed dropped the whole way through the race, although I picked it up a bit at the end. The big peak probably also has something to do with the two places on the last lap where I walked to drink some water, which ended up being quite close together because of the time van driver offering me a bottle of water not so long before the final official water point.
I should have been aiming for a 7 min/km pace which would have had me over the finish line in 1:52. The truth is that since I was already well behind the rest of the pack by the end of the first km, I didn’t have the feeling that I was running that fast, it felt pretty comfortable. Once I realized what my pace was, I should have held back, but because I could still see the people ahead, and had vain ideas of sticking more or less with them, I didn’t let up. Silly of me, in hindsight. I might have got away with it for longer on a cooler day, but not on such a sunny day on a course with little shade.
As you can see, whilst I’ve managed to improve my speed on short distances over the last few months, I really need to do work both on endurance and pacing. Ideally these graphs should be more or less horizontal.
Fueling
Given that I knew I was going to be on my feet for a while, and that I planned to cycle to the race start, I did actually make the effort to figure out how many calories I needed to fuel my activities for the day, and to try to prepare myself.
I even got so far as deciding what I’d eat for breakfast, and for lunch, but ended up not sticking to the plan – not really smart.
According to Fitbit’s calculations, the run would consume about 930 calories, and the cycling to the race maybe another 100. Plus of course, I needed enough fuel to take account of basic metabolism for most of the day, and the fact that I did some gardening in the morning.
In the end, my intake over the course of the day before the race was the following:

With hindsight, that’s probably about what I might have consumed during breakfast and lunch if I wasn’t running, and was surely insufficient.
On the train back home again I felt pretty nauseous and dizzy at one point, and my guess is that it was a combination of lack of fuel and dehydration.
Time on feet
So, fueling and pacing are definitely things I need to work on. The final piece of the puzzle, I think, is simply putting in more time on my feet. My weekday 6km runs are working wonders for my speed over shorter distances, but I don’t get in very many runs longer than that, and all of those are in race conditions. I still feel quite a mental barrier to running longer distances on my own, and I certainly don’t have a good track record with them in the past. Pretty much every longer race I’ve done, I’ve fallen apart at the end, and I think that a lot of the issue is lack of distance training, and inadequate fueling.
I think I need to simply start building up gradually. My plan is that the next time I go out with my colleague, instead of doing the final 500m stretch back into the office with him, to add on an extra little loop to bump the route up to 8km or so.
Shoes
I did take one of leap of faith on Monday’s run, and that one I’m happy with. I decided to wear my Merrells for the run. That makes it the longest distance, by far, that I’ve ever run in minimalist shoes. Although it was a risk, I had the feeling that I was ready for it, and the results backed it up. Although my calves were rather stiff when I woke up the morning after the race, they loosened up pretty quickly once I was up and moving around, and my feet feel far better than after a long run in my old shoes. That for me is a good sign that I can pretty much ditch the traditional shoes and continue now in the Merrells and VFFs. It’ll take a bit longer to build up the VFF distances as the soles are thinner, but it’s going well.
Next steps
The next long race in the books is a 20km trail run at the end of May. Between now and then I really need to get a few more longer runs in, but more than anything I need to make sure that I pace myself on the day. Fingers crossed that the weather will at least be a little cooler. I think I’m also going to try running with the Camelbak as practice, and then use that for the race.
As for the half marathon in June, I’m not yet signed up, and I’m still doubting a little. After yesterday’s run I simply don’t think that I’m ready yet, and I intend to hold myself to my promise not to run another half until I’m really prepared for it. It’s important for me that my next half marathon is a significant improvement on the last one, both in terms of time, and consistency of pace. I don’t want to run another one unless I know that, barring the unexpected on the day, I can run strong throughout.



