i read somewhere that he was "pacing", which doesn't really make sense since the pacers usually hang in until mile 20 or so, and are just as quick as Mo over the half distance. Perhaps he'll be pacing the other british runners, or perhaps wherever i heard that it was just wrong.
Either way, i'm not really that bothered how he does given that he's not running the whole thing. I'll be very interested to see how he gets on in 2014, I reckon Steve Jones' record might be broken then, but whether Mo wins it in his debut will depend on which Kenyans turn up.
Running the first half in 2013 is obviously just a publicity stunt, but not sure why either Mo or the London Marathon have gone for it, as neither really needs the publicity.