World Tennis Number ('WTN') is an international real-time skill level rating for all tennis players. Its used to track player skill level based on actual performance. WTN is calculated and reported separately for Singles and Doubles.
Ideally, there should only exist one WTN for a particular player for Singles and/or Doubles. There are two identifiers for WTNs.
Whenever a new account is created at USTA, a new account is created at ITF as well. If an account already exists at ITF, the existing Tennis Id is linked to the USTA account instead of creating a new account at ITF.
USTA account number
ITF account number
WTNs are calculated once per week on Wed AM. Play activity submitted to USTA up to the prior week Friday is taken into account for the Wednesday calculation.
Play activity submitted after the Tues deadline will be figured into the following week calculation (week following contribution).
Play Activity Submission
Submitted by Tues 6pm EST
Calculated 12AM Wed AM GMT
Play Activity Figured Into Calculation
Played on date up through prior week Fri
WTN is a number of statistics taken together to form a profile of performance.
Tennis Number, Confidence, Game Zone and Last Played are calculated and reported separately for Singles and Doubles.
Skill rating (where 1 is the most skilled rating)
40 - 1
Number indicating how much play activity was taken into account when calculating the Tennis Number. (70 - 100 indicates most confident)
Game Zone Upper Game Zone Lower
Number indicating the Tennis Number range of players that roughly match the skill rating of the player’s Tennis Number
40 - 1
Date of calculation
Last know competitive match submitted to ITF for inclusion in the calculation