Right, considering where you’re from, that’s a boldface lie about the times. Regardless though, anybody who has actually worked with someone who is in 11.0fat shape knows that anything approximating 14flat (let alone faster than that) is way too fast for extensive tempo. In fact, I’d question how much volume you could be doing below 15 seconds/100m if you are doing all of the runs on grass and with relatively short (<60seconds) rest between reps. My PR is below 11.0fat and I’ve trained with people who have run substantially faster than that and I am fairly certain none were approximating those kind of speeds for extensive tempo (finish the way you start with incomplete rests and not going too hard), especially when done on softer surfaces.