A group of deer ran into an opening between runners, but one tags a person. Never heard of this happening, but it can as deer are flight animals who will panic and run as fast as they can.
The runner just picked himself up and finished the race.
Hopefully, a fully charged anti-deer coalition with muskets, rifles and bows ready will not want to clear out the nearby woods. The runner just picked himself up and finished the race and is all right.