I rode the 100k with Adam (who is 13). It's his first 100k since doing the London Sightseer about 18 months ago.
We started off badly - having to stop to sort out a rattly rear mudguard (loose bolt on the brake bridge - his bike has cantis so the brakes were fine), then his front derailleur which had somehow got stuck on the big ring (a hard push, it clicked, and started working normally). Both had been fine on a shakedown ride last weekend.
Anyway, we dropped off the back and so started riding mainly alone. It was a good day to be out, except for a bit of a headwind - possibly the first sustained one Adam has ridden into. We did reel in some people, and got back to HQ for the 64km control with 45 minutes in hand (having been overtaken by HK stoking a tandem trike - I think she was on the 150). It took longer there than I'd hoped, as they managed to forget our bacon butties
The second loop had several roads we'd ridden on earlier Uts rides, so was fairly familiar to both of us. We rode alone again round this, but did occasionally run into people doing the 200k. We finished off with 30 minutes in hand, so quite a leisurely ride, and saw a few people at the finish (Greenbank, Mr & Mrs Blacksheep etc.).