Agreed - even though his splits in this year's LA Marathon are less wildly fluctuating than before, they are still not right. He yo-yo's quite a bit, especially between 15 and 30k, where he slows down by 1:20, then speeds up by 1:20 for consecutive 5k splits. Some defenders might try to play that off as normal, but it isn't. Usually when a marathoner slows by that much, it's a one-way trend; there is no speeding back up. And it's especially unlikely to have such variation in a race in which he sets an age-group world best, or close to it - everything would have to go perfectly, unless he's actually far superior to the previous record-holders like Ed Whitlock and can afford to just mess around, take a dump, etc.