Not a single person in the world predicts Dathan to win gold. But again, what's the surprise here on his top end speed? Everyone knows his limitation. He's likely the slowest 200M guy to ever run under 13 minutes for 5K. Strength, strength, strength over the distance.
A 12:56 5K guy feeling good and tapering perfectly can certainly run 27 Flat and achieve something rare. And I hope he does. He deserves it.