Both kids went in the 30min. Younger did 2 laps. Older quit after one.
They chose to start both the youngest age group and the doggone 12 to 14 year olds on course at the same time. They let the older off first. Then there was a solid delay to getting the youngest group off.
So, the older group starts lapping the youngest group on first half of the younger group's first lap. A teen ran into my older kid and knocked him down good. Then he wanted to quit. I mean, the youngest group was doing like 6mph and the oldest kid group was doing like twice that. The older group probably could finish mid or front 1/3 pack in the adult 4/5 race.
Needless to say that might be it for this experiment for him. We'll see.