Hole 1
Par 4 · 341 yd
Plays north-east. Dogleg right. 5 bunkers.
Green 30 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Thiells, New York, USA
18 holes, par 72, about 6,180 yards (5,651 metres) along the hole lines. The par 3s are 3, 5, 8, 12 and 17. The par 5s are 6, 9, 11, 13 and 16. The longest hole is the 11th at 546 yd, the shortest the 17th at 138 yd. The map shows 53 bunkers. Water is in play on holes 13, 15 and 16.
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 · 341 yd
Plays north-east. Dogleg right. 5 bunkers.
Green 30 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 381 yd
Plays north-east. 4 bunkers.
Green 37 yd deep, 23 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 153 yd
Plays north-east. 2 bunkers.
Green 36 yd deep, 23 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 455 yd
Plays north. 3 bunkers.
Green 37 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 223 yd
Plays south-east. 2 bunkers.
Green 23 yd deep, 32 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 471 yd
Plays south-west. 4 bunkers.
Green 38 yd deep, 32 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 288 yd
Plays south-west. 4 bunkers.
Green 35 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 184 yd
Plays south-west. 3 bunkers.
Green 38 yd deep, 35 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 433 yd
Plays west. 4 bunkers.
Green 28 yd deep, 28 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 331 yd
Plays south-west. Dogleg right. 4 bunkers.
Green 26 yd deep, 24 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 546 yd
Plays north-east. Dogleg right. 3 bunkers.
Green 28 yd deep, 34 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 194 yd
Plays north-east. 2 bunkers.
Green 35 yd deep, 22 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 501 yd
Plays north-east. 4 bunkers and water.
Green 28 yd deep, 22 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 349 yd
Plays south-east. Dogleg right. 2 bunkers.
Green 37 yd deep, 21 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 331 yd
Plays north. Dogleg left. 3 bunkers and water.
Green 34 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 536 yd
Plays south. 6 bunkers and water.
Green 31 yd deep, 23 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 138 yd
Plays south. 5 bunkers.
Green 31 yd deep, 21 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 327 yd
Plays south-west. Dogleg left. 4 bunkers.
Green 33 yd deep, 19 yd wide. Falls 3% 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.