Our track team put on the Nude Olympics at our college one spring. It was in reaction to lots of people running on the track at night, mostly in the dark. (facility had no night lighting) We think they were doing so because they were too embarrassed/self conscious to run during daylight.
So we did the Nude Olympics one evening. Most of the track team and a few others showed up. Obviously an unofficial event that school administration would have shut down had they known about it. Like some of the streaking we did.
We had at least one person complete most of the standard T & F events. I know for distances we combined the 5 and 10k with one start time and ran concurrently with other events.
I remember finishing the 10k in the 35 min range while dodging people in other events and slowing down some to watch other events.
And external support is not necessary if you have good form and are smooth.
Lol, we had the nude relays. We also went on naked training runs through the woods nearby, and occasionally through town.