An open, source-attributed database of golf equipment specs. Every field on every record carries its own provenance — where the number came from, when it was observed, and whether it has been independently verified. 376 records across 11 categories, 9,447 sourced field entries.
One record per model line; variants (lofts, configurations, per-iron specs, grinds) embedded under the parent.
| Category | Coverage | Records | Sourced fields | Verified |
|---|---|---|---|---|
| Drivers | Heads with adjustability, movable weights, launch/spin characterization, and speed-range fit. | 41 | 735 | 132 (18%) |
| Fairway woods | Including mini-drivers. Per-loft stock lengths, adjustability, characterization. | 30 | 418 | 97 (23%) |
| Hybrids | Rescue / utility heads with loft classes and iron-replacement positioning. | 20 | 270 | 68 (25%) |
| Iron sets | Full per-iron specs — loft, lie, length, offset — for every position the OEM offers. | 40 | 1,916 | 620 (32%) |
| Wedges | Every loft / bounce / grind configuration, with structured grind characterization comparable across OEMs. | 21 | 1,501 | 63 (4%) |
| Putters | Hosel → toe hang → stroke arc fit chain standardized across OEMs. | 79 | 1,943 | 126 (6%) |
One record per shaft family; weight classes (Ventus Black 5/6/7/8, Dynamic Gold R300–X300) as variants under the parent.
| Category | Coverage | Records | Sourced fields | Verified |
|---|---|---|---|---|
| Driver shafts | Aftermarket and stock families with bend profile, torque, tempo fit, and weight-class variants. | 66 | 1,347 | 197 (15%) |
| Fairway shafts | Fairway-specific families and -FW variants of driver profiles. | 13 | 190 | 40 (21%) |
| Hybrid shafts | Hybrid / utility profiles, cross-linked to their driver and fairway siblings. | 12 | 170 | 38 (22%) |
| Iron shafts | Steel and graphite iron families — taper/parallel tips, step styles, flex-weight bundling. | 14 | 268 | 46 (17%) |
One record per grip line; every size the OEM sells as a variant with its core diameter and weight.
| Category | Coverage | Records | Sourced fields | Verified |
|---|---|---|---|---|
| Grips | Swing and putter grips — core (.580 / .600), weight per size, taper, reminder rib, material, putter-grip shape. | 40 | 689 | 50 (7%) |
My bag. Keep the exact build specs of the clubs you play — bent lofts, lie, length, shaft and tipping, grip and wraps, swingweight, hosel and weight settings, wedge grinds — with a dated history of every measurement. Private to your account, ready on your phone at the next fitting.
Per-field provenance. Specs aren’t trusted at the record level — each field carries its own source attribution (OEM-published, OEM spec sheet, lab test, community measurement, community consensus) and verification state. A record can have a verified loft and a pending swing weight at the same time, and the UI shows you exactly which is which.
Parent-club methodology. One record per model line, with variants embedded: a driver parent carries its lofts, an iron set carries per-iron specs for every position, a wedge carries every (loft, bounce, grind) configuration, a shaft family carries its weight classes. Sibling lines (P770 / P790 / P7MC) are separate parents, cross-linked.
Standardization layers. Where OEM language isn’t comparable across brands, the schema adds a structured layer: wedge grinds get ordinal sole/relief/camber characterization plus cross-OEM equivalence links; putters get the hosel → toe hang → stroke arc fit chain.
Contribution. Seeded records start as pending and flip to verified against confirmed OEM citations — several record tables are already verified this way. Community contribution is rolling out now: create a contributor account to suggest corrections, add sources, and flag errors. See the contributor terms for licensing (CC BY-SA 4.0 — free to reuse with attribution, keep it open).