Hole 1
Par 4 · 439 yd
Plays east. Dogleg left. 1 bunker and water.
Green 15 yd deep, 14 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Barrington, Illinois, USA
18 holes, par 71, about 6,808 yards (6,225 metres) along the hole lines. The par 3s are 4, 7, 13 and 17. The par 5s are 6, 15 and 18. The longest hole is the 15th at 564 yd, the shortest the 4th at 176 yd. The map shows 35 bunkers. Water is in play on holes 1, 2, 3, 4, 6, 8, 9, 10, 11, 12, 13, 15, 16 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 · 439 yd
Plays east. Dogleg left. 1 bunker and water.
Green 15 yd deep, 14 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 420 yd
Plays north-west. Dogleg left. 1 bunker and water.
Green 31 yd deep, 31 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 323 yd
Plays east. Dogleg right. 4 bunkers and water.
Green 31 yd deep, 20 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 176 yd
Plays west. 1 bunker and water.
Green 54 yd deep, 19 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 446 yd
Plays east. 2 bunkers.
Green 33 yd deep, 23 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 548 yd
Plays east. 4 bunkers and water.
Green 30 yd deep, 23 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 195 yd
Plays south. 2 bunkers.
Green 40 yd deep, 21 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 301 yd
Plays south. Dogleg right. 3 bunkers and water.
Green 32 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 432 yd
Plays west. 3 bunkers and water.
Green 37 yd deep, 28 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 465 yd
Plays west. 1 bunker and water.
Green 31 yd deep, 78 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 468 yd
Plays east. Dogleg right. 1 bunker and water.
Green 40 yd deep, 24 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 316 yd
Plays north-west. 7 bunkers and water.
Green 35 yd deep, 25 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 185 yd
Plays east. 2 bunkers and water.
Green 27 yd deep, 21 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 355 yd
Plays east. 1 bunker.
Green 31 yd deep, 20 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 564 yd
Plays south. 3 bunkers and water.
Green 39 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 384 yd
Plays west. 1 bunker and water.
Green 31 yd deep, 26 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 248 yd
Plays south-east. 3 bunkers.
Green 39 yd deep, 26 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 545 yd
Plays north-west. 4 bunkers and water.
Green 35 yd deep, 23 yd wide. Falls 5% 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.