I spoke the reporter who was there (although typically, the event was organised in such a way he wasn't able to find the finish line, and I'd wager some of the participants couldn't either). The Bangladesh man who won had never even run a race before, let alone in 40+ plus heat. He was, as you can imagine, absolutely shattered. He did win Dh5,000, or about $1,600 Cdn, and everyone else who participated was given Dh500.
Apparently some of them got quite into it, while others walked. Not surprising. We could all learn something from these people; so many of them are masters of making the best of it.