anyone participate in Midcity run club or Happy's run club?

I do ultras and there’s a group of 4 of us who go do 10 hills sprints over the North Blvd overpass, the do the Happy’s 5K, then do 10 more hill sprints at the overpass afterwards. We are experienced, fast runners and usually finish at the very front of the pack, so the 5K alone is done at a pretty chill pace for most. There’s a shite ton of people and it’s a friendly environment.