How DUPR Works - One Algorithm, Every Court

Four Steps

From your first match to a portable rating

The entire process is automatic once your club or event director submits results.

1

Play a rated match

Compete at any participating club or DUPR-registered event. No special equipment or setup required on your end.

2

Results are submitted

Your club director or event organizer submits match scores directly to DUPR. Most clubs automate this through the dashboard.

3

Algorithm updates your rating

The DUPR algorithm processes your result against your opponent's current rating. Your new rating is visible within 24 hours.

4

Show it anywhere you play

Your rating travels with you. Walk into any DUPR-affiliated club or event, share your number, and play at the right level immediately.

The Algorithm

How your number is calculated

DUPR ratings are probability-weighted. Your result is measured against what was statistically expected given you and your opponent's current ratings. A win against a stronger player moves your number more than a win against a weaker one.

Ratings stabilize after 20 or more logged matches. Until then, your tier is marked provisional and may swing more between sessions. After the 20-match threshold, a single result moves your rating by a fraction of a point, making the system resilient to one bad day.

Feature	DUPR	Club-only rating	Self-reported level
Works across clubs
Updates automatically
Opponent quality weighting
Used by event organizers		Partial
Free for players		Varies

Common Questions

Rating FAQ

How often does my rating update?

Your rating updates within 24 hours of a rated match being submitted by your club director or event organizer. Most clubs process results same-day. You will see the new number in your profile as soon as the batch runs.

What happens if I play at a new club for the first time?

Your existing DUPR rating carries over immediately. The new club can see your number as soon as you share your profile. If the club is a DUPR partner, match results there count toward your rating just like your home club.

Can event organizers see my full rating history?

Organizers see your current rating and tier. They do not see match-by-match results from other clubs unless you share your full profile link. Your privacy settings control what is public.

How many matches do I need before my rating is stable?

DUPR requires a minimum of 20 logged matches for your rating to exit provisional status. Before that threshold your rating is accurate but may shift more between sessions. After 20 matches, rating changes per result are smaller and more precise.

Does my rating drop if I stop playing for a while?

Your rating does not decay due to inactivity alone. It only changes when new match results are submitted. If you take a break and come back, your rating will reflect your last known performance level until new results update it.

Claim your rating today.

Free to join. Start earning your portable DUPR rating with your next match.

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