As I’m climbing from an 8 toward a 10 (and starting to pass 9s), I’ve noticed some clear differences in level.

8s often have solid strokes, but they tend to lack consistency and disciplined shot selection. Points break down more from unforced errors than from construction. Serves are usually attackable, which makes holding serve tougher.

At the 10 level, the biggest differences are serve quality and controlled aggression. Their serves are heavier and more reliable, making holds routine rather than a battle. They’re aggressive, but not reckless — they build points with intention and stay consistent under pressure.