UTR uses other units of measurement of points, or they divide points differently. In any case, such a difference in points is not surprising. Then look at the difference between European ratings and American and Asian ratings, and you will also notice that the ratings do not match in points. Even on sites with tennis clothes like https://lululookalike.com/white-tennis-skirt, there are different sizes: American, European, and Asian. Asian players look petite and fragile, and Americans look like the gods of Olympus. It's funny.