Speed endurance the key to *all* 11/12second sprinters?

Even if you factor out the RXN, he is still far behind (relative to his best races). We’re talking over a tenth off his best 30m (rxn factored out).

The 300-180-150 is described as speed endurance by the coach. I think he eventually only did one set but not sure. On the video, this is not a workout, just his usual warm-up before races, these are acceleration build ups, not tempo.

If you watch the video in full, you’ll notice his coach says the workout is 4x110m… @ intensive tempo pace…