LabRacquetPilot Lab
For people who want
a closer look at strings
Cross-sections under the microscope, how unusual profiles wear over time, what a new string would look like on your racquet, and the experiments everyone wondered about. Strings first, then racquets and accessories.
ToolsTools
Cross-section, gauge and wear in 3D, including how the profile changes with tension.
Access code required · Open the tool →How main and cross combinations look on the racquet.
Access code required · Open the tool →
Balance Point CalculatorTurn a balance board reading in cm into head-light or head-heavy points, to the nearest half point.
Public
String list113 strings from 20 brands. Construction and gauge from manufacturer specs, kept with source and date.
PublicExperiment 01We measure racquet face area ourselves
Left: the racquet. Right: the measured stringbed area. The app uses this instead of the nominal head size.
- Nominal
- 100 in²
We computed 123 this way and checked 23 against the physical frame. The same "98" runs from 94 to 99.
See the spectrum →ExperimentsExperiment series
MicroscopeStrings under the microscope
Cross-sections and surfaces. How an octagonal or hexagonal profile rounds off after a few hours of play, where the coating wears first — the same string, photographed again and again.
See it in 3D in Gauge Bench →DataHow we handle data
What appears here is manufacturer-published spec and the part of our own results we can publish. The string constants used in the tension math are measured on retail samples — one jig, one method — and stay inside the app.
- 113strings · 20 brands
- 72 · 587string product·gauge combinations measured · readings (tallied Aug 31–Sep 24)
- 123racquet faces computed (from manufacturer face images)
- 23racquets checked against physical dimensions
This is not a certified gauge. Absolute tension is an estimate built on our measurements, and it keeps getting tighter. Percent of day one is a ratio against the first reading.
Access codes go to the people working with us now, and later to collaborators and paid members. Ask on the support page.
Ask for a code