If you don't wear underwear and take part in a race, you know what will happen? Your penis will take the opportunity to take a breath before you take him for shower after the race.
This is not a joke, as you can see in these two pictures. The runner should know he has a long penis and he shouldn't wear XXL shorts without underwear in the race. And this causing him accidentally exposed his penis and balls along the run.
But his penis didn't slow down the pace of the athlete because the athlete was leading all the way.
Good for him and good for us to witness the great and rare moment.