Why, if Bekele (and the Ethiopians for that matter), are all such speedsters with supposedly 46-47 speed, that none of them ever compete, let alone medal (or even make a final) in the 800m?
If Bekele could run 47, then cruising a 51, and then putting a final lap 51 should be simple, right? A 1:42 would easily win the past 3 Olympics. SO why doesn't he do it?
The answer is he tops out at 49-mid (as Canova and the other coaches have stated). That will get him a 1:46 and 3:33, but it won't get him on the podium. The fact is he can tap into his power at the end of a tough race, and hence he looks (and is) so dominating in the 5 and 10k.
Having watched guys like Kevin Sullivan for years, I would bet big money with his 3:31 PB, that never race faster tahan 49 flat, and I know his PB in the 800m was 1:47. The fact is his "speed endurance" is amazing, not his speed. and that is what is confusing all these Bekele-lovers.