How ELO Ratings Work
PickleWave calculates ELO ratings for professional pickleball players using match results from tournaments.
The basics
Every player starts at 1500. Win a match and your rating goes up. Lose and it goes down. How much it moves depends on your opponent — beating a highly-rated player earns more points than beating a lower-rated one.
Three separate ratings
Ratings are tracked independently for each discipline:
How much does each match matter?
The K-factor controls the maximum points that can change hands in a single match. We use a flat K of 40 across all match types — finals, semifinals, pool play, and MLP. Testing showed that varying K by round added no predictive accuracy.
New players move faster early on so their rating converges quickly:
| Matches played | K multiplier | Effective K |
|---|---|---|
| Fewer than 10 | 2× | 80 |
| 10 – 19 | 1.5× | 60 |
| 20 or more | 1× | 40 |
Provisional ratings
Until a player has played 20 matches, their rating is considered provisional. Provisional ratings are shown on player profiles but the player does not appear on the leaderboards yet.
Leaderboard eligibility
To appear on the ELO leaderboard a player must have played at least 20 matches and have competed within the last 12 months.
How accurate is it?
We backtested our model against 31,815 matches. The current parameters predict the correct winner 69.4% of the time — better than a coin flip and in line with other ELO implementations in racket sports.