Firstly, a tragic death in London this weekend, widely covered in the press. It will likely be either hyponatraemia (too much fluid and too little salt) or heat stroke, given his age. Time will tell.
One of the other questions was whether or not someone would run Sub-2. The answer was no. Firstly because it was too hot. And secondly because the data said not. It’s not likely to be before 2030 at the rate it is going. I haven’t plotted a 95% CI, but perhaps with a few more technical and training examples, some competition, and optimal conditions, it may be sooner.
See what you think. I have updated some charts I have with the 2018 finish times. I won’t be reading articles about Sub-2 times in London for a while, but on a track in Italy, maybe…