Hole 1
Par 3 · 187 yd
Plays east. 1 bunker.
Green 27 yd deep, 22 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Northborough, Massachusetts, USA
18 holes, par 73, about 6,115 yards (5,592 metres) along the hole lines. The par 3s are 1, 5, 14 and 18. The par 5s are 2, 7, 8, 15 and 17. The longest hole is the 17th at 560 yd, the shortest the 5th at 138 yd. The map shows 38 bunkers. Water is in play on holes 6 and 13.
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 3 · 187 yd
Plays east. 1 bunker.
Green 27 yd deep, 22 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 511 yd
Plays south.
Green 21 yd deep, 23 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 308 yd
Plays south-east. 2 bunkers.
Green 23 yd deep, 24 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 388 yd
Plays north. 6 bunkers.
Green 28 yd deep, 22 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 138 yd
Plays south. 3 bunkers.
Green 26 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 303 yd
Plays north-east. Dogleg right. 1 bunker and water.
Green 24 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 491 yd
Plays north-west. Dogleg left. 1 bunker.
Green 22 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 144 yd
Plays west. 2 bunkers.
Green 24 yd deep, 20 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 303 yd
Plays west. Dogleg left.
Green 37 yd deep, 22 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 375 yd
Plays east. Dogleg right. 2 bunkers.
Green 24 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 360 yd
Plays south. 1 bunker.
Green 26 yd deep, 21 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 337 yd
Plays north. 2 bunkers.
Green 30 yd deep, 23 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 416 yd
Plays south. Water.
Green 21 yd deep, 21 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 207 yd
Plays north-east.
Green 21 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 476 yd
Plays north. 1 bunker.
Green 26 yd deep, 22 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 441 yd
Plays south.
Green 30 yd deep, 26 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 560 yd
Plays north-west. Dogleg left.
Green 24 yd deep, 32 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 175 yd
Plays west. 1 bunker.
Green 26 yd deep, 23 yd wide. Falls 2% 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.