Pre-launch

Know where
you stand.

A real skill rating for tennis. Every match counts, the math is published, and you cannot give it to yourself.

Most tennis players have no number.

Not because they are not good enough to have one. Because the systems that hand them out were never built for people who just play a lot.

No rating at all
You play every week and still have no idea what level you actually are, or who is a fair match.
Tournament gatekeeping
Most systems only count sanctioned events, which excludes almost everyone who plays club tennis.
One algorithm for everything
Generic ELO applied blindly. No margin of victory, no decay, no signal for how much to trust a number.

The math

Published, not a black box.

Purpose-built for tennis rather than ported from chess and left alone. When the rating moves, you can see exactly why.

Margin of victory

A 6-0, 6-0 win moves your rating further than a 7-6, 7-6 squeaker, because it is stronger evidence. Winning is not a single bit of information.

score = 0.5 + 0.5 × dominance × weight

Confidence, stated openly

Glicko-2 tracks how sure the system is about you, not just where you sit. New and inactive players carry wider uncertainty, and the app says so instead of hiding it.

rating ± deviation → reliability %

A rank that means something at a glance.

The ladder is painted directly on the rating, so it cannot drift away from it. Cross a boundary and you are promoted on the spot.

Wood
III / II / I
0 - 900
Bronze
III / II / I
900 - 1100
Silver
III / II / I
1100 - 1300
Gold
III / II / I
1300 - 1500
Emerald
III / II / I
1500 - 1700
Platinum
III / II / I
1700 - 1900
Diamond
III / II / I
1900 - 2100
Master
No divisions
2100 - 2300
Grandmaster
No divisions
2300 - 2500
Pro
Top 10 globally, or 2500 up
2500 +