DUPR is a skill level rating system. All players, regardless of their age, gender, location, or skill, are rated on the same scale, based on their game results.

DUPR is free to register, and anyone can have a rating. Individuals, clubs, leagues and tournaments can use DUPR.

For individual use, you simply play a game, record the score and the names of the players, and DUPR starts calculating the skill levels of all participants. (All players must have a DUPR profile (account), and all players must verify the score when asked by DUPR.)  

The more games you record in DUPR, the more accurate and more consistent your skill level rating.

DUPR's rating algorithm considers several factors to calculate a skill level. Factors include how many points your team scored in a game, the ratings of your partner and opponents, whether you won or lost, and whether it was a recreational game score or a more competitive club, league or tournament score.  

We have also found that, as with other similar rating systems,  one's DUPR rating can be skewed down if you consistently play DUPR games with players who are more skilled than you, or can be skewed up if you consistently play with others who are less skilled than you. There are two lessons from this:

1. The most accurate rating results from playing and recording games with a variety of players within your skill level.
2. Don't be dismayed if your DUPR rating is occasionally below your "real" skill level or club skill level. (In SAPC, you will NOT lose your club rating!)

No, most club sessions are not DUPR sessions, but the Club does schedule DUPR Rating sessions for members to establish their club ratings.  

We also schedule DUPR Play sessions for players with designated club ratings. Most players in these sessions are just there for the fun of play, but these are also attended by those seeking to raise their DUPR rating, and they tend to be a bit more competitive than regular club play. 

See SAPC DUPR Play FAQ for more.