Did my first ever official race against the clock this evening, the club 10 at Betteshanger Country Park (course Q10/42).
It's a fast course, on a nice wide track, pretty flat with bends you can take at full tilt. No junctions, no traffic. On the other hand, the heat made it hard work, and my gears weren't playing nicely because I'd had to fit a spare wheel after a spoke breakage at the weekend. I wasn't anticipating doing much better than 28 minutes - in fact, I'd have been happy with anything under 30 minutes.
I actually clocked 25:48, which I'm delighted with.
I know I can go faster though, so I'm setting my sights on 25 minutes. This season.
(For some context, I think the winner tonight was not much over 20 minutes.)
ETA: It occurs to me that my time for the 10 tonight is about the same as what I've been doing for the 5km parkrun lately. This seems to bear out my theory that they are roughly equivalent events. Having said that, my PB for parkrun when I was at my fittest was 20:23 and I doubt I'll ever get that fast on the bike for a 10.