Hole 1
Par 4 · 469 yd
Plays east.
Green 27 yd deep, 28 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Hartsdale, New York, USA
18 holes, par 69, about 6,480 yards (5,925 metres) along the hole lines. The par 3s are 3, 8, 12 and 17. The only par 5 is the 7th. The longest hole is the 7th at 509 yd, the shortest the 17th at 154 yd. The map shows 1 bunker. Water is in play on holes 3, 4 and 17.
Every hole, numbered, as the app draws it.
Each hole turned so it plays up the page, from the tee at the bottom. Every green's slopes are mapped: flip a card to see its green.
Par 4 · 469 yd
Plays east.
Green 27 yd deep, 28 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 416 yd
Plays south. Dogleg left.
Green 28 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 212 yd
Plays south-west. Water.
Green 28 yd deep, 33 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 334 yd
Plays north-east. Water.
Green 30 yd deep, 35 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 300 yd
Plays north.
Green 30 yd deep, 37 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 443 yd
Plays north.
Green 33 yd deep, 33 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 509 yd
Plays south-west.
Green 36 yd deep, 31 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 208 yd
Plays south.
Green 44 yd deep, 24 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 443 yd
Plays north. Dogleg right.
Green 26 yd deep, 19 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 424 yd
Plays west.
Green 24 yd deep, 25 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 301 yd
Plays west. Dogleg right.
Green 35 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 156 yd
Plays north-west.
Green 35 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 455 yd
Plays south.
Green 24 yd deep, 23 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 394 yd
Plays north.
Green 34 yd deep, 30 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 377 yd
Plays south.
Green 25 yd deep, 23 yd wide. Falls 7% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 404 yd
Plays east.
Green 24 yd deep, 22 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 154 yd
Plays east. Water.
Green 24 yd deep, 17 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 482 yd
Plays west. Dogleg left. 1 bunker.
Green 21 yd deep, 21 yd wide. Falls 12% overall. An arrow every 4 m here, every 2 m in the app.
Lengths are measured along each hole's line on OpenStreetMap, so they can differ from the club's card. A bunker between two holes counts on both.
The app
On your iPhone and Apple Watch, Number & Line turns this map into a yardage book, with distances to the front, middle and back of each green from where you stand. You can plan each hole at home and get club advice from your own distances and the day's wind.
The app is coming soon to the App Store, and this course is already built for it.

Course map © OpenStreetMap contributors, under the Open Database Licence. See it on OpenStreetMap, where anyone can correct it. Green slopes: USGS 3D Elevation Program 1 m DEM (public domain). Our maps are open data too. Number & Line isn't connected with the club.