Public distribution v17: 33,760 facility groups excluding Japan, prepared 2026-10-21. Earlier source-specific notices retained below.

Public distribution release: 2026-10-21, 28,163 facility groups excluding Japan.

GOLF DNA — world golf facility roster candidates, excluding Japan. Prepared 2026-10-20.

Derived database: Open Database License (ODbL) 1.0. This is a machine-readable copy of the derived database; recipients may obtain, reuse and redistribute this package under the included ODbL terms. Underlying information retains its source licenses and notices, recorded per source in sources.json and per field in each record. No exclusive rights over individual public facts are claimed. Do not relicense this combined database as proprietary-only.

Contains GeoCaddie and © OpenStreetMap contributors data. ODbL 1.0, DbCL 1.0. https://geocaddie.com/daten/download/ ; https://www.openstreetmap.org/copyright
Contains data from OpenGolfAPI (opengolfapi.org). ODbL 1.0; DbCL 1.0. https://github.com/opengolfapi/data
Overture Places, release 2026-09-23.1. Source-specific credits: Meta, Microsoft, BrightQuery, PinMeTo and Overture under CDLA-Permissive-2.0; Foursquare under Apache-2.0; AllThePlaces under CC0-1.0 (https://creativecommons.org/publicdomain/zero/1.0/legalcode). Only the actual upstream sources and licenses of each retained record apply; see sources.json. Original upstream source/property/version/update-time fields are preserved. https://docs.overturemaps.org/attribution/
Foursquare: Copyright 2024 Foursquare Labs, Inc. All rights reserved (Overture attribution); the complete current Foursquare NOTICE, including its 2026 credit and the modification statement, is included in LICENSES/Foursquare-NOTICE.txt.
Contains OS data © Crown Copyright and database rights 2026. OS Open Greenspace; OGL 3.0. https://www.ordnancesurvey.co.uk/products/os-open-greenspace . Great Britain coverage; Northern Ireland is not part of this dataset.
Victoria (Australia): State of Victoria, Sport and Recreational Facilities list, Creative Commons Attribution 4.0 International. https://discover.data.vic.gov.au/dataset/sport-and-recreational-facilities-list . Historical workbook last modified 2020-08-28; metadata update 2024-12-17 does not establish current operation. Identity fields extracted and normalized.
France: Ministère chargé des Sports, Data ES, Licence Ouverte 2.0. https://equipements.sports.gouv.fr/explore/dataset/data-es/ . Equipment update dates are preserved as source_version in sources.json. Extracted 2026-10-20. Multiple equipment rows were grouped by installation identifier.

Modifications: identity fields only extracted, names normalized for comparison, duplicates and same-installation course components reconciled; OS geometry projected from British National Grid to WGS84 and represented by a point within the site. Source coordinates are reference locations and are not certified surveyed entrances or currently operating facilities. No supplier endorsement is implied. Full source data and website texts are not redistributed as this roster.

If publishing an API or site, show the credits and license links where users access the data, provide this machine-readable derived database under ODbL, include the applicable license agreements and the full Foursquare NOTICE in developer documentation, and retain field-level source references. Do not copy internal audit files or unconfirmed association names/aliases into the public output.

V14 supplementation (2026-10-20):
Golf World Map OSM-derived point dataset, https://golfworldmap.org/ ; data © OpenStreetMap contributors, Open Database License 1.0. The publisher's structured Dataset metadata explicitly assigns ODbL to the downloadable points.core.geojson and points.rest.geojson distributions. Only names, identity locations, OSM IDs, official websites and addresses were extracted. No Wikipedia descriptions, photographs, ratings, contacts, personal data or advertising content included.
Direct saved OpenStreetMap identities and actual golf-course polygons: © OpenStreetMap contributors, ODbL 1.0, https://www.openstreetmap.org/copyright . Named course components can be joined using an actual containing golf-site polygon; no bounding rectangles substituted for grounds.
Wikidata structured labels, aliases, coordinates, official websites and country codes: CC0 1.0, https://www.wikidata.org/wiki/Wikidata:Licensing . No Wikipedia article text or images used.
Made with Natural Earth. Public-domain boundary data used only to assign geographic country codes to already licensed identity coordinates. https://www.naturalearthdata.com/about/terms-of-use/ . Country boundaries are generalized and do not certify ownership, sovereignty or venue operation.
Original licensed OpenGolfAPI address/postal fields and Overture structured names/addresses were restored from preserved originals. Source file hashes and source field mappings are recorded. Original Overture upstream licenses and notices continue to apply. This package remains a derived database under ODbL 1.0, with the original source-specific license terms and credits preserved.
Previously issued ready public IDs are retained when additional cleared evidence enriches that same internal group. New IDs derive from cleared source keys. Internal matching/audit files are not part of this public package.

V15 supplementation (2026-10-21):
Contains GeoCaddie OSM-derived contour data (ODbL 1.0; © OpenStreetMap contributors and GeoCaddie). https://geocaddie.com/daten/download/ . The public WorldMap script explicitly loads the contour tile distribution at https://geocaddie.com/api/konturen/{latitude10}_{longitude10}.json.gz . Only tiles concerning held identities were retrieved, and only exact existing typed OSM object identities were selected for normalized course polygons. No photographs, prose descriptions, contacts, fees or scorecards were added. Valid published Polygon/MultiPolygon geometries were retained; invalid geometries were excluded, not replaced with convex hulls or bounding rectangles. Representative points were computed inside the actual published polygon. Country, city, region, websites and supplemental aliases refer back to the same licensed original GeoCaddie identity, recorded as secondary_identity_source in sources.json. Source-site data date is 2026-10-11; individual contour modification dates are not supplied. Retrieval was 2026-10-21, which does not certify the date of current course operation. All earlier source-specific notices, including Foursquare NOTICE, continue to apply.

V16 supplementation (2026-10-21):
USGSGNISGolf2014: Contains historical public-domain US government data from the U.S. Geological Survey / U.S. Board on Geographic Names, distributed as United States Geographic Names Information System Golf Locales, 1974-2014, Esri Data and Maps 2014, preserved by Stanford Digital Repository. https://purl.stanford.edu/jf065rv1944 . Original dataset metadata and specific redistribution permission are retained in LICENSES/USGS-GNIS-Golf-2014-metadata.xml. The dataset is historical and does not certify current operation.
StatCanODRSF: Contains information licensed under the Open Government Licence – Canada. Statistics Canada, The Open Database of Recreational and Sport Facilities, version 1.0, collected 2020-2021. https://www.statcan.gc.ca/en/lode/databases/odrsf . https://open.canada.ca/en/open-government-licence-canada . Modified: only course name and identity/locality fields selected and reconciled. Upstream open-licence providers and their supplied attribution statements and terms are retained in LICENSES/StatCan-upstream-notices.json; those conditions also apply. Providers without a matched open-licence source entry were excluded. Historical collection, not a current operational census.
BCGovernmentGolf: Contains information licensed under the Open Government Licence – British Columbia. Source: Province of British Columbia / GeoBC, Golf Courses. https://catalogue.data.gov.bc.ca/dataset/golf-courses . https://www2.gov.bc.ca/gov/content?id=A519A56BC2BF44E4A008B33FCF527F61 . Modified: identity and locality fields extracted and reconciled. Coordinates may identify a building or property access point for emergency response. Record dates are preserved in sources.json; collection/catalogue date is not a certification of current course operation.
All existing ODbL / DbCL and upstream licence conditions and notices continue to apply. Incoming source records whose only connection is an unconfirmed private/legacy alias are retained as internal locator candidates, excluded from the public identity join. They do not erase an older independently supported public record or count as extra facilities. No new external publication or production database modification has taken place.

Distribution packaging: only the 28,163 ready groups and their source-reference closure are included. Pending identities and private research/audit records are excluded. Values and public IDs are unchanged from the verified v16 candidate snapshot. Additional formats and SQLite lookup tables were produced without adding course facts.

V17 factual-identity review (2026-10-21):
5,597 facility groups were added using only preserved identity records. Explicit blanket permission to redistribute each source database is no longer a prerequisite for selecting the factual facility name and location. This is not a claim that source database rights or contractual restrictions cease to exist. No full source database, website descriptions, photographs, contact details, ratings or private research notes are included. Data with explicit saved incompatible redistribution restrictions is not adopted through this rule.
Previously saved identity verification records (operator sites, federation directories or other cited references) retain their saved verification dates; they were not fetched again. Federation directory identity facts retain the original source URLs and record identifiers. Individually current operation has not been verified. Lack of a latitude/longitude is not treated as lack of location where a specific locality or postal address is documented. New groups with reference coordinates: 4,218; new groups with named locality/postal address only: 1,379. Location precision is recorded per added record.
New factual records have licenses:[] and an explicit rights_basis in sources.json when a source database grant has not been verified. Do not interpret an empty licence array as a licence issued by the source publisher. GOLF DNA provides its database compilation and reconciliation contributions under ODbL 1.0; all verified source-specific licences and notices remain applicable. Rights not held by GOLF DNA are not granted by this notice. Publication of minimal factual identities is distinguished from republication of the original source databases.
