UTR 1.0 = WTN 36.8

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

For more detail, see the original research article.