This is not a quiz result
1,379 racquets, lab measured 4,812 string tests 13 power points per stringbed 285 frames you can still buy
Measured, never marketed
Every frame here has been on a laboratory rig. Swingweight, twistweight, recoil
weight, flex, and a 13 point map of how much ball speed the stringbed gives back at
each spot on the face. We do not read manufacturer copy and we do not repeat it.
1,379 racquets, 285 of them current
Your own words, read properly
You write how you play. Claude turns that into a measurable profile, and it must
quote your sentence, word for word, for every conclusion it draws. A conclusion with
no quote behind it is deleted in code, not merely discouraged. You are shown the
quotes and can tell us where we read you wrong.
Enforced, not requested
The string and the tension, not just the frame
What you actually feel is the stringbed. Fifty pounds of a soft poly and fifty of a
stiff one are different racquets, so a tension on its own means nothing. We work out
the bed stiffness your game is asking for, then invert each string's own measured
stiffness line to solve the tension, in pounds, for your frame.
4,812 string tests, read at your swing speed
Scored against people who hit them
Physics cannot tell two similar frames apart. Playtesters can. A racquet reaches
your shortlist only if somebody has actually hit it and published what they found,
across twelve qualities, and we match those qualities to what you asked for.
126 frames with independent evidence
And what we will not claim
We can get you to the right handful of racquets. We cannot tell you which one of
them you will love, and neither can anybody else with a spec sheet. We tested that
claim on 482 real playtest results and it failed, so we do not make it. Every number
on your report is labelled measured, derived, or assumed, and the working is shown.
The arithmetic is on the report, not hidden
How to get the most out of this
The tick boxes are a baseline. The fit gets sharply better when question 10, the
free-text one, actually has something in it. What moves the answer:
Where the ball goes when you miss. The single most useful thing
you can tell us. Long, into the net, off the frame, shanked when rushed.What breaks down under pressure , and on which wing.Your grip and where you take the ball. Early and out in front is
a different racquet from late and defensive.Any arm history. Elbow or shoulder trouble changes the string and
the tension more than it changes the frame.What you want that you do not have. Depth, control, dip, plow.What is in your bag now , and what you like and dislike about it.
We rank your current setup against the shortlist, spec by spec.
Messy is fine. Practice notes are perfect. Longer is better.
First, what should we call you?
Only so the report can greet you. It is never stored anywhere we can read,
and you can leave it blank.
1 What do you rate yourself? self-rated is fine, it just sets the baseline This drives more than you would think. Every ball speed we show you is
computed for your swing, and strings are read at your swing speed, because the same
string measures 22% stiffer for a 3.0 than for a tour player.
2.5 Rallying, still finding consistency 3.0 Reliable on medium-pace balls 3.5 Directing the ball, some pace and spin 4.0 Dependable strokes, playing points properly 4.5 Pace and spin on demand, sound tactics 5.0+ Strong league or open level
2 Which hand?
Right Left
3 Your forehand grip?
Continental Flat hitter, slice, old school Eastern Drive-through, flatter ball Semi-Western Natural topspin Western Heavy topspin, big rally arcs
4 Singles, doubles, or both?
Singles Baseline battles Doubles Net play, quick hands, volleys under fire Both
5 What does your swing look like?
Short and compact Punchy, efficient Smooth and full Classic loop, relaxed finish Big and whippy Fast racquet head, lots of lag
6 Where do your misses come from? pick any that feel familiar
Balls that crowd me Shanks and weak contact when jammed Off the top of the frame Especially high or early balls Sailing long Good contact, ball won't stay in Dying into the net Can't get easy depth
7 How's your hitting arm?
Feels great No trouble Sometimes sore Elbow or shoulder grumbles after long sessions Needs protecting History of tennis elbow or shoulder issues
8 If a racquet could give you one gift?
Forgiveness My off-days shouldn't be punished Easy power Depth without muscling it Control I supply the power, keep it in Spin More dip, more kick
9 And your build?
Light and quick Maneuverability over mass Somewhere in the middle Strong Happy to swing a heavier frame
10 Now tell us how you actually play, in your own words
this is the important one The boxes above give us a baseline. This is where the real signal is.
Paste your practice notes, ramble, be messy. Claude reads it properly, and it will show
you the exact sentence behind every conclusion it draws, so you can tell it when it is
wrong. Nothing gets used that it cannot quote back to you.
Grips, misses, what breaks down under pressure, what you want more of,
any arm history. The longer and more honest, the better the fit.
11 What's in your bag right now? optional, but this is the good part Tell us your current racquet and string and the report shows exactly how
your setup stacks up against the recommendations, spec by spec.
Current racquet
Current string
Tension (lbs)
Your profile is private to your browser and is not shown to anyone else. We do not
ask for your name, your email or any way to identify you.
Your write-up is sent to Anthropic's API to be read, and to nowhere else.
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