Yeah, I sort of covered this, but could have been more clear. CF will make you better at your sport to the extent it makes you stronger. Endurance is sport-specific, so this is not much of a factor. A soccer player probably won’t run more in a CF workout than he already does playing soccer, so the improvement is negligible if any.

That said, there are safer and more efficient ways to get stronger than doing CF. Especially for people that compete, you want the chance of getting hurt while exercising to be basically zero. The whole point of strength training in this context and in general is to make you more resilient so you don‘t get hurt playing your sport.

Doing CF as a recreational activity or sport in and of itself is out of the scope of my original post.