2. Length. A standard adult racket length is 27 inches (with 29 inches as the maximum length allowable for tournament play). An extra inch or two in your racket size can make all the difference in providing leverage for your serves and more reach for your groundstrokes. However, longer rackets have higher swing weights, which means less maneuverability. For children between the ages of four and 10 (or for heights between 40 and 55 inches), racket lengths are usually around 19 to 26 inches.
How to Choose a Tennis Racket [buyer’s Guide]
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