Tennis Glossary
Learn the language of Tennis — answer-first definitions with real examples, beginner to pro.
2 terms
- RA / StiffnessProRA is a racquet's stiffness measured by how much the frame deflects under load. Higher RA (66+) means a stiffer, more powerful but harsher frame; lower RA (under 58) flexes more for feel and arm comfort.
- SwingweightProSwingweight measures how heavy a racquet feels when swung, accounting for where its mass is distributed. Higher swingweight gives more plow-through and power but is harder to maneuver.
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