The fastest he done it is 17 35 secs last March hes a very good runner and 17 stone 10 lbs but an Athlete. plus he goes regularly on something weve developed which changes the whole principle of getting fit. We do this run to see where they are for condition. Ive got a 16 year old not pushing him who does 1 min 55secs for the 800 metres hes a flyer, but a runner agood long term bet for a medal in 1202 olympics, but cant fight