Most of those skills that had an improvement were those that had already progressed to a decent percentage before. Also, the player could be faster trainer. So, it could be the first only or a combination of both. You will see that after his next training or match, he will not appear to have progressed enough as those skills that recently gain 1 point or more are probably in the lower progression percentages for the next skill points. Then after the next other match or training session, the gain in skill points will appear again. It is a sort of cycle.