Eric Min’s PRL ride

Does anyone know if this event is open or closed?

Start time is later than I’d like so I wondered whether I could join the route earlier in workout mode then join everyone on the same route starting later?

Welcome to join Giant Bagel ride; we’re starting it a few hours earlier (this wasn’t planned to be this way; we had discussed and planned this out months ago):

Technically though once you end your ride, that’s the end of it; so if you are looking for the badge, you have to do it all in one “sitting” (one ride).
Thus if you do … say 3 laps, and then join one of the rides, you’re starting again on lap 1.