It was noticeable in both record breaking races that he was never close enough to the rabbit to benefit from running in the rabbit’s “wind shadow” or drafting as it is commonly known.
Leaning on the research of others I come to the conclusion that a further improvement of between .1sec and 1sec would should be within his reach as a result of drafting for at least one circuit of the track
The assumption is made that drafting is limited to one lap form the break point to the same point one lap later. The athletes are in lanes for the first bend and in Rudisha’s case he was in the lead from 515m point. One could imagine that meeting organisers could contrive to put Rudisha in Lane 8 and the rabbit in Lane 7. If the two runners then run towards the inside and outside of their lanes respectively, Rudisha would be effectively running off the shoulder round the first bend and gain some additional benefit.
But is this what racing is all about? It so, then equip athletic tracks with an inside or outside hare like dog tracks. Many theories require the athlete to be a programmable robot for implementation. The hare is programmable, but would the spectators be interested? Any views?