How many tennis rackets should I demo at one time?

Demo exactly 3 or 4 rackets at a time. Demoing only 2 doesn't give you enough variety, while demoing 5 or more leads to 'spec fatigue' where you can no longer differentiate the feel between the frames.

How long should I test a demo racket on court?

Play with each demo racket for at least 2 hours across three separate sessions. Your body needs time to adjust. A racket that feels great in the first 10 minutes can feel heavy and tire your shoulder after an hour.

Why do strings matter when demoing a racket?

Strings account for 50% of a racket's playability. If you test a great racket strung with dead, stiff polyester strings, it will feel terrible. Try to ensure all demo rackets are strung with fresh synthetic gut to compare the frames fairly.

What is the index finger grip test for demo rackets?

When demoing, check the grip size. Hold the racket in an Eastern grip. You should be able to fit the index finger of your opposite hand snugly into the space between your ring finger and palm. If it doesn't fit, the grip is too small.

Should I buy a racket based on my favorite pro's gear?

No. Professional players use customized frames with massive weights (340g+) and stiff strings that are unplayable for intermediate club players. Choose a racket based on your own NTRP skill level and swing speed.

How to Choose a Tennis Racket: The Complete Demo Guide

When shopping for a new tennis racket, it is tempting to browse online reviews, look at the specifications, and click "buy." But this is a gamble. A racket is an extension of your arm, and its playability depends on variables that cannot be read on a spec sheet—like how it flexes on impact, how it cuts through the air, and how it responds when you are hitting defensively on the run. Knowing how to choose a tennis racket correctly is the single most important step to preventing injuries and reaching your potential.

To make the right choice, you must demo rackets on court. Most major online retailers and local pro shops offer demo programs where they will ship you 3 to 4 frames to test for a week. However, many players waste their demo sessions. They play with the frames for ten minutes, hit a few forehands, and make a decision based on first impressions. This often leads to buying a racket that causes joint fatigue or control problems.

As a playtester who has evaluated hundreds of frames, I developed a structured demo protocol. In this guide, I will show you how to choose the right demo frames based on your NTRP level, how to run a structured playtest on court, and what variables to isolate to make the correct purchase.

1. Demo Evaluation Parameters & Specification Log (Statics)

To ensure a scientifically sound comparison between demo frames, reference the testing parameters (statics) and log your observations:

Testing Metric	Standard Recommendation	Playability / Customization Purpose
Demo Quantity	3 to 4 frames simultaneously	Balances variety while preventing spec fatigue
Total Testing Time	4 to 6 hours cumulative play	Allows muscular adaptation across multiple sessions
String Tension Decay	10% to 15% drop per week in box	Accounts for shipping relaxation (frame feels springier)
Grip Clearance	1 index finger width (~8-10mm)	Verifies correct handle circumference
Manufacturing Variance	Up to +/- 7g weight, +/- 10mm balance	Accounts for retail stock deviations from catalog specs
Ball Configuration	Minimum 24 fresh balls	Old balls decrease rebound rates by 20%, invalidating test
Swingweight Tolerance	+/- 5 points deviation	Limits swing speed differences between demo rackets

2. Step 1: Filter Demo Frames by NTRP Skill Level

Before ordering demos, you must narrow down the choices. Do not select rackets at random. Filter your selections based on your NTRP rating:

NTRP Skill Level	Racket Classification	Recommended Specs	Target Models
Beginner (1.5 - 2.5)	Game Improvement	Weight: <275g unstrung Head Size: 105 - 115 sq in Balance: Head-Heavy	Wilson Triad Five
Intermediate (3.0 - 4.0)	Tweener / All-Court	Weight: 285g - 300g unstrung Head Size: 100 sq in Balance: Head-Light	Wilson Clash 100 / Yonex EZONE 100
Advanced (4.5 - 5.5+)	Player's Frame	Weight: 305g - 320g unstrung Head Size: 95 - 98 sq in Balance: Highly Head-Light	Wilson Blade 98 / Pro Staff 97

[!TIP] Select 3 frames that fit your current NTRP level. Select 1 "stretch" frame (e.g., if you are a 3.5 player, select one heavier 305g frame) to see if you benefit from more weight.

3. Step 2: The On-Court Playtest Protocol

When your demo rackets arrive, do not just play a match. Run them through this structured four-step testing routine:

Test A: Baseline Groundstrokes (45 Minutes)

Stand at the baseline and trade cross-court groundstrokes with a hitting partner.

Evaluate Depth: Does the ball land deep in the court naturally, or do you have to swing hard to clear the net?
Evaluate Stability: When your partner hits a hard ball, does the racket twist in your hand, or does it plow through the ball?
Check the Flex: Does the impact feel soft and cushioned (like the Clash) or crisp and firm (like the Pure Drive)?

Test B: Serving (15 Minutes)

Hit at least 20 serves with each frame.

Flat Serves: Can you generate easy power on your first serve?
Spin Serves: Does the frame allow you to snap your wrist quickly to hit kick and slice serves?
Shoulder Fatigue: After 15 serves, does your shoulder feel tired? A racket that is too heavy will drag on your arm at the top of your serve arc.

Test C: Net Volleys (15 Minutes)

Have your partner hit passing shots from the baseline while you stand at the net.

Maneuverability: Can you position the racket quickly during fast exchanges?
Touch: Can you feel the ball on the strings to carve out short angles and drop volleys?
Block stability: Does the racket twist when blocking back fast pace?

Test D: Defensive Scrambles (15 Minutes)

Have your partner run you side-to-side, forcing you to hit on the run.

Forgiveness: When you hit off-center or late, does the ball still clear the net, or does it die? This tests the size of the sweet spot.

4. The Great String Variable: How to Compare Fairly

The biggest trap in demoing is the string variable. According to technical guidelines from the United States Racquet Stringers Association (USRSA):

[!WARNING] "Because demo rackets sit in warehouse depots and shipping boxes for weeks, the strings undergo significant tension loss and plastic creep, losing up to 30% of their tension. This makes them feel significantly more powerful and launch the ball higher than a freshly strung retail frame."

Ideally, all demo rackets should be strung with the same string type (usually basic synthetic gut or multifilament) at the same tension to allow you to compare the frames fairly. Additionally, ITF Equipment Standards recommend playtesting with fresh tennis balls, as worn felt or soft ball cores decrease rebound height by up to 20%, distorting your feel of the frame's power.

5. How to Make the Final Decision

After running your tests over three separate sessions, ask yourself these three questions:

Which racket was the most comfortable? If a racket made your wrist or elbow ache, eliminate it immediately, regardless of how well you hit.
Which racket gave me the most confidence on big swings? You want a racket that allows you to swing fast without worrying about the ball flying long.
Did I play better or worse? If possible, record a practice match using each frame. Sometimes the racket that "feels" the best doesn't produce the best results.