"Are there any other differences anybody can add to this?"

"White men can't jump"

...which is not really a joke. One of the evolutionary advantages of some blacks, along with extra resistance to UV light, is a slightly different muscle structure. Add to this the 'selection' process during slavery where deliberate breeding was done to produce stronger field hands,,,,

I found many examples like the following. I do NOT claim that any particular details are 100% accurate, only that there are various scientific tests which seem to verify observation that in some sports, there is a natural advantage.

"Compared to Whites, Blacks have narrower hips which gives them a more efficient stride. They have a shorter sitting height which provides a higher center of gravity and a better balance. They have wider shoulders, less body fat, and more muscle. Their muscles include more fast twitch muscles which produce power. Blacks have from 3 to 19% more of the sex hormone testosterone than Whites or East Asians. The testosterone translates into more explosive energy.

..... these physical advantages give Blacks the edge in sports like boxing, basketball, football, and sprinting. However, some of theserace differences pose a problem for Black swimmers. Heavier skeletons and smaller chest cavities limit their performance."