It’s not a sprint…

Yesterday I ran the longest distance I’ve ever run (31.5 km or 19.5 miles), and for the longest time I’ve ever run (nearly 4 hours). It wasn’t fast, but I was very happy to complete three quarters of a marathon at a consistent pace. It was certainly a lot harder maintaining that pace at the end, but it does show the importance of not blowing all my energy in the first 10 miles.

And just a couple of days ago I surprised myself by running a new personal best time over 5 km at the local parkrun, so it counts as a good week.

The training plans tell me that I’ve now run as long a distance as I need to in training for a marathon, and I certainly feel happier now that if all goes well I do have a hope of finishing – something that didn’t seem so likely just a week ago when I struggled to finish 17 miles. However, the other thing the books say is that the last 6 miles are as hard as the previous 20, so no smug feelings yet. It’s rather tempting to try a run over the full marathon distance just to see what happens. If I made it comfortably (I use the word in relative terms here) it would do wonders for the confidence, but everyone says don’t do it. There’s a risk of breaking myself, and of course it would be very bad for the morale if I wasn’t able to go the distance.

I did the run as 3 laps of a 10.5 km route from home (so 4 laps would be a full marathon), which gave me a chance to pick up water – I find it a nuisance to carry more than half a litre, and that’s not enough for 4 hours of running, even in these relatively cool conditions. In practice I only did one water stop, after the first lap, so I survived on a litre, which is probably less than recommended. The first half litre was just water, the second contained an energy supplement. I didn’t feel particularly thirsty while running, but was certainly pretty dehydrated after I finished.

Learning points?

  • The run was a successful implementation of good pacing. The intention was to run at around marathon pace, and I was able to maintain that pace consistently and feel that I could have gone further
  • My feeding and drinking worked fine for that distance, but I think could have been a problem with another 80 minutes or so of running. It would be good to see the effect of another drinks stop

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