While still impressive read some stuff online and curious as to how much difference it could have made to his time, the revolving pace setters infront of him in a v shape supposedly for aerodynamics, the green laser dot for them to keep them on the best line and the trainers he used which according to someone in the business for that makes it feel like you're running downhill due to the technology in them, apparently for marathons a rule (which correct if wrong) is that runners are required to have shoes that are openly and reasonably accessible to general runners, which the shoes he was wearing sounds like they may not have been.
As said just curious how much the above factors could have influenced the time and given he was under by 20 seconds is the sub 2 hour marathon (in a marathon) still some way off?