As an experienced distance runner, I noticed a few things that might’ve gotten by people who are not familiar with this activity. First, as others have pointed out, he was wearing cargo shorts, not a good idea for a long run as they get heavy as a result of sweat accumulation and can also cause chaffing.
Second, he doesn’t appear to be wearing socks. On an extended run, that’s a sure ticket to blisters and irritation.
Third, his shirt doesn’t seem to be wet with sweat. After a 10 mile run in the afternoon, the typical runner would be drenched.
Frankly, I’m dubious of the claim that this individual was jogging.🤔