Most athletes when subjected to a tailwind experience hysteresis in the control of their movement. Almost always this is corrected in a race, if it isn’t the athlete will likely fall on their face. From the data it looks like it occurred between 80-90m in this race or was this the result of Gay??? Possibly, the latter, but it also happened to 1/2 the finalist and all in the outside 4 lanes on the track at 50-60m as well.