Hole 1
Par 4 · 359 yd
Plays south-west. 2 bunkers.
Green 35 yd deep, 24 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Yonkers, New York, USA
18 holes, par 70, about 5,959 yards (5,449 metres) along the hole lines. The par 3s are 4, 9, 13 and 16. The par 5s are 10 and 17. The longest hole is the 10th at 517 yd, the shortest the 4th at 137 yd. The map shows 22 bunkers. Water is in play on holes 2, 4, 5, 6, 7, 11, 12, 13, 14, 15 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 · 359 yd
Plays south-west. 2 bunkers.
Green 35 yd deep, 24 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 379 yd
Plays south-west. 1 bunker and water.
Green 33 yd deep, 22 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 361 yd
Plays south-west. 1 bunker.
Green 25 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 137 yd
Plays north. 2 bunkers and water.
Green 33 yd deep, 31 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 299 yd
Plays north-east. 1 bunker and water.
Green 31 yd deep, 27 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 322 yd
Plays north-east. 1 bunker and water.
Green 31 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 394 yd
Plays north. Dogleg right. 1 bunker and water.
Green 36 yd deep, 34 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 342 yd
Plays north. 1 bunker.
Green 31 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 173 yd
Plays south. 1 bunker.
Green 26 yd deep, 26 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 517 yd
Plays north. 2 bunkers.
Green 32 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 329 yd
Plays west. Dogleg right. 2 bunkers and water.
Green 33 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 390 yd
Plays south. Dogleg right. 1 bunker and water.
Green 32 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 167 yd
Plays west. 2 bunkers and water.
Green 32 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 320 yd
Plays south-east. 1 bunker and water.
Green 34 yd deep, 22 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 414 yd
Plays south-west. 2 bunkers and water.
Green 34 yd deep, 24 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 164 yd
Plays south. 2 bunkers.
Green 35 yd deep, 31 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 466 yd
Plays north-east. Dogleg right. 5 bunkers and water.
Green 34 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 427 yd
Plays north. 2 bunkers.
Green 28 yd deep, 24 yd wide. Falls 4% 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.