World Tennis Number
WTN is a global tennis rating system developed by the
International Tennis Federation (ITF).
- Ranges from 40 (beginner) to 1 (top professional)
- Updated weekly based on match results
- Considers opponent strength and match score
- Designed for accuracy across all play levels
For more information, visit the
WTN website.
Universal Tennis Rating
UTR provides a global tennis rating system that measures players'
skill levels.
- Ranges from 1.00 (beginner) to 16.50 (top professional)
- Uses a proprietary algorithm to calculate ratings
-
Considers match scores, quality of opposition, and recency of
results
- Applicable across age, gender, and geography
Learn more at the
UTR Sports website.
Converting UTR to WTN
The conversion applies formulas from the study titled "Which global tennis rating
better measures player skill? " by Rebecca L. Mayew and William J. Mayew
- UTR = 15.3567 – 0.3539 * WTN
- WTN = 39.1836 – 2.3973 * UTR
For more detail, see
the original research article.