That guy never put the bar on his back nor did he any weights. Still make progress every year. Just wonder what the difference would be if he did? As for a white guy running 10.14 without tail wind isn’t that bad, last year 10.24. Not doing weights might show his time for 60m which is 6.70. If he had time for 60m like Lemaitre so maybe we would see another sub 10 white guy. Sadly, training is not like a linear mathematical calculations
Here is his 10.14 race https://www.youtube.com/watch?v=iYT5L1JSwcU&feature=related