Hole 1
Par 4 · 404 yd
Plays south-west. Dogleg right. 13 bunkers and water.
Green 48 yd deep, 39 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Hampden, Massachusetts, USA
18 holes, par 72, about 7,287 yards (6,663 metres) along the hole lines. The par 3s are 3, 9, 12 and 15. The par 5s are 2, 8, 11 and 14. The longest hole is the 8th at 619 yd, the shortest the 15th at 132 yd. The map shows 230 bunkers. Water is in play on holes 1, 2, 4, 5, 6, 8, 12, 13, 14, 15 and 18.
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 · 404 yd
Plays south-west. Dogleg right. 13 bunkers and water.
Green 48 yd deep, 39 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 576 yd
Plays west. 13 bunkers and water.
Green 33 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 279 yd
Plays east. 7 bunkers.
Green 30 yd deep, 34 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 413 yd
Plays east. Dogleg right. 3 bunkers and water.
Green 32 yd deep, 30 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 428 yd
Plays west. 14 bunkers and water.
Green 85 yd deep, 32 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 437 yd
Plays west. 17 bunkers and water.
Green 33 yd deep, 33 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 432 yd
Plays east. Dogleg right. 15 bunkers.
Green 85 yd deep, 32 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 619 yd
Plays east. Dogleg right. 32 bunkers and water.
Green 27 yd deep, 40 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 180 yd
Plays north-east. 3 bunkers.
Green 31 yd deep, 40 yd wide. Falls 7% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 397 yd
Plays south-west. 18 bunkers.
Green 43 yd deep, 26 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 574 yd
Plays west. 12 bunkers.
Green 36 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 222 yd
Plays west. 6 bunkers and water.
Green 49 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 399 yd
Plays east. 12 bunkers 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 5 · 552 yd
Plays east. 17 bunkers and water.
Green 39 yd deep, 40 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 132 yd
Plays south. 11 bunkers and water.
Green 40 yd deep, 37 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 373 yd
Plays south-west. 19 bunkers.
Green 30 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 383 yd
Plays north-east. Dogleg left. 22 bunkers.
Green 31 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 486 yd
Plays north. Dogleg right. 18 bunkers and water.
Green 40 yd deep, 24 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.