Regarding the headline, it looks as if Rudisha is near enough to "back". Not the strongest field he's crushing here, but it's amazing nonetheless. About the most perfect mix of power and aesthetic grace exemplified in a stride, and then a widening gap. Kilian's Hardrock is one thing, this another. Both are nominally running, but could hardly be more different. Both are stunning, however. They have that in common.
If I could, as in Space Jam, steal the powers of any one runner, it'd be this guy. Why race all day if you can beat people in under two minutes?