Tennis Racket Stiffness (RA Rating) Explained: What It Means for Your Game (India)
That RA number on a racket spec sheet actually tells you a lot — about power, comfort, and whether your elbow will thank you later.
Tennis racket stiffness (RA rating) explained: what it actually means for your game
Most tennis racket spec sheets list an RA rating somewhere alongside weight and head size, and most buyers skip straight past it because it's the least intuitive number on the list. That's a mistake — stiffness affects power, feel and arm comfort more directly than almost any other racket spec, and understanding it makes the difference between picking a racket that suits your game and one that actively works against your arm.
What RA rating actually measures
RA is a stiffness scale used industry-wide, typically running from around the low 50s (very flexible) to the mid-to-high 70s (very stiff), measuring how much the racket frame flexes on impact with the ball. A stiffer frame — higher RA — flexes less, which means more of the impact energy transfers directly into the ball rather than being absorbed by the frame. A more flexible frame — lower RA — flexes more, absorbing some of that energy instead of returning all of it to the ball.
Why a stiffer racket generally means more power
Because a stiff frame loses less energy to flex, it tends to produce more power for the same swing speed compared to a flexible frame — which is exactly why a lot of power-oriented rackets are built stiffer. The Wilson Ultra UV and Ultra Power 105, both built around a power-and-comfort positioning, sit on the stiffer end of that spectrum for exactly this reason. The tradeoff is feel: a very stiff frame often feels harsher and gives less feedback on contact than a more flexible one.
Why some players deliberately choose a lower RA rating
A more flexible, lower-RA frame like the Wilson Blade Feel 100 absorbs more shock at impact, which generally translates into a more comfortable, arm-friendly feel — genuinely useful if you already deal with elbow or wrist discomfort, or you simply prefer more feedback and touch over raw power. Many control-oriented and "player's" rackets are deliberately built more flexible for this reason, even though it costs a small amount of raw power compared to a stiffer equivalent.
Does racket stiffness actually affect tennis elbow?
There's a reasonable and widely accepted link between playing with an excessively stiff racket and increased strain on the elbow and forearm, since a stiffer frame transmits more shock into your arm on off-centre hits rather than absorbing it in the frame. It's not the only factor — string tension and type, grip size and technique all play a role too — but if you're dealing with ongoing elbow discomfort, checking your racket's RA rating and considering something more flexible is a reasonable first step alongside proper string and tension choices.
What RA rating to look for based on your game
There's no single "correct" number, but as a rough guide: players prioritising comfort, feel and arm health generally do well in the low-to-mid 60s RA range or below, all-round players sit comfortably in the mid-60s, and players specifically chasing maximum power with a fast, aggressive swing can look toward the high 60s and above. If you're unsure, starting closer to the middle of that range and adjusting based on how your arm and game respond is safer than jumping straight to the stiffest option on the shelf.
Stiffness isn't the only factor — string setup matters too
A flexible frame strung with a very stiff polyester string at high tension can end up playing firmer than a stiff frame with a softer multifilament string at lower tension — so if arm comfort is the goal, string choice and tension deserve as much attention as the frame's RA rating itself, not as a substitute for it.
Shop the gear
- Wilson Blade Feel 100 Strung Tennis Racquet — ₹10399 (lower stiffness, comfort-focused)
- Wilson Ultra UV Strung Tennis Racquet — ₹5849 (stiffer, power-focused)
- Wilson Ultra Power 105 RXT Strung Tennis Racquet — ₹7149
- Babolat Syntec Uptake Tennis Replacement Grip — ₹366
Related reading
- Tennis Racket Weight, Balance and Swingweight Explained (India Buying Guide)
- Tennis Elbow and Racket Choice: How Gear Can Reduce Arm Strain (India)
Frequently asked questions
What is a good RA rating for a tennis racket?
There's no single correct number — it depends on your priorities. Roughly, low-to-mid 60s and below favours comfort and arm health, mid-60s suits all-round play, and high 60s and above favours maximum power for players with a fast swing.
Does a stiffer racket cause tennis elbow?
An excessively stiff racket can increase strain on the elbow and forearm because it transmits more shock into your arm on off-centre hits. It's one contributing factor among several, including string tension, string type and technique.
Does racket stiffness matter more than string choice for comfort?
Both matter. A flexible frame strung with a stiff polyester at high tension can play firmer overall than a stiffer frame with a soft multifilament string at lower tension, so string setup should be considered alongside RA rating, not instead of it.
