Free · DUPR-compatible · No account needed
Rating Estimator
Enter ratings and a final score to see expected performance and estimated rating movement — the same logic DUPR uses for close losses and narrow wins.
Not affiliated with DUPR. Estimates only — does not submit ratings.
Expected Score
See what DUPR-style math predicts before you play.
Close Loss Bonus
Understand why a 9–11 loss can still raise your rating.
Win ≠ Gain
Narrow wins against weaker opponents can still drop rating.
Singles & Doubles
Team ratings averaged for doubles matchups.
How it works
Enter ratings
Your DUPR rating, opponent rating, and match format.
Add the score
Final game score and match type (rec, club, tournament).
See expectation
Expected score based on rating gap.
Estimate change
Projected rating movement vs your current rating.