Might be best to use the Strava segment? As we know, meetups are notoriously rubbish for having a consistent start/finish distance from one rider to the next. Also, I was thinking we still might have enough people to do a club race some time that week if we can find a timeslot that suits enough people (with anyone who can't make it doing it as a meetup in their own time), and that for sure would be a different distance to a meetupNo, we took the time on the leaderboard shown at the end of the race (remember to tick the "Race Results" box when setting up your meetup folks!)
Note that the default meetup on R.G.V. starts you just after the exit from the pens, but the blue transparent finish line appears about 50 metres before the Marina Sprint banner for some reason.