USTA NTRP Rating. An NTRP Rating is a numerical indicator of tennis-playing ability, from 1.5 (beginner) through 7.0 (touring pro), which aligns with a set of general characteristics that break down the skills and abilities of each level, in 0.5 increments. Ratings are generated by play in USTA Adult Divisions of 18 & Over, 40 & Over, 55 & Over ...
https://www.usta.com/en/home/coach-organize/tennis-tool-center/run-usta-programs/...