This morning I rode over to Tempsford to help out at the North Middx & Herts '100' - the organiser having emailed a plea for assistance. Being a kindly soul (and having been in the position of desperately hunting for marshals and other helpers for an Association event in the past), I immediately accepted, but requested a role late in the event as I was planning to cycle over. In the end I was asked to help the timekeeper by noting riders' numbers as they passed the finish point.
This was a novel version of the F1/100, apparently necessary because a triathlon was being held on the roads normally used for the event. Essentially, the course used this morning had the riders doing Tempsford to Buckden three times (this being on the A1), then exiting at the Black Cat roundabout to do two laps of a finishing circuit on the A421.