The A/B/C pens for this event (1870675) were used to spread out the start time of the riders, not to group them by their categories. So at the organisers request a lot of riders started in pens that did not match their category. Unfortunately however, Zwiftpower has gone and UPG’d them. Confirm with Eric Schlange.
…and fixed. Many thanks to whoever did that. I know it wasn’t a race, but still nice not to have a UPG against my name and to be able to compare my performance to the whole list of riders.