DUPR/PIRAT Comparison

DUPR and PIRAT are both player-rating systems, but they are not the same thing. They use different internal calculations and a different scale. This page attempts to provide a rough translation from one system to the other, but it's important to note that it's not an exact conversion and players that have ratings in both systems may deviate from the conversions shown here.

For our club, PIRAT is the more useful operational tool because it lets us apply localised seeding for new players when we have reliable local knowledge that should be taken into account before enough recorded scores exist; PIRAT is also able to track doubles, singles and skinny singles games.

PIRAT Centered

Tags PIRAT Range Rough DUPR Equivalent % of Rated Members
Advanced 1 8.000+ 4.403+ 1.4%
Advanced 2 7.000 to 7.999 3.900 to 4.398 6.5%
Intermediate 3 6.000 to 6.999 3.397 to 3.895 16.9%
Intermediate 4 5.000 to 5.999 2.893 to 3.392 27.0%
Intermediate 5 4.000 to 4.999 2.390 to 2.888 21.9%
Social up to 3.990 up to 2.385 26.3%

DUPR Centered

Tags DUPR Range Rough PIRAT Equivalent % of Rated Members
up to 2.99 up to 5.192 55.0%
3.0 to 3.5 5.212 to 6.205 23.4%
3.5 - 3.99 6.205 to 7.179 13.3%
4.0 to 4.49 7.198 to 8.172 6.5%
4.5 to 4.99 8.192 to 9.165 1.1%
5.0 and above 9.185+ 0.0%

Based on 278 members with a valid PIRAT rating who played at least one scored doubles game since 29 Jan 2026.