Hole 1
Par 4 · 419 yd
Plays south-west. 2 bunkers.
Green 36 yd deep, 27 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Hoffman Estates, Illinois, USA
18 holes, par 72, about 6,971 yards (6,374 metres) along the hole lines. The par 3s are 4, 8, 13 and 17. The par 5s are 2, 6, 11 and 15. The longest hole is the 6th at 565 yd, the shortest the 4th at 171 yd. The map shows 47 bunkers. Water is in play on holes 5, 6, 7, 12 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 4 · 419 yd
Plays south-west. 2 bunkers.
Green 36 yd deep, 27 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 519 yd
Plays south-east. Dogleg right. 5 bunkers.
Green 26 yd deep, 19 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 383 yd
Plays west. 3 bunkers.
Green 28 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 171 yd
Plays north. 3 bunkers.
Green 28 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 436 yd
Plays south-west. Dogleg left. 2 bunkers and water.
Green 38 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 565 yd
Plays north. Dogleg right. 2 bunkers and water.
Green 32 yd deep, 23 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 353 yd
Plays north-east. 2 bunkers and water.
Green 28 yd deep, 22 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 197 yd
Plays south. 2 bunkers.
Green 35 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 410 yd
Plays north-east. Dogleg right. 2 bunkers.
Green 34 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 423 yd
Plays north. 1 bunker.
Green 35 yd deep, 26 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 525 yd
Plays east. 3 bunkers.
Green 28 yd deep, 22 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 388 yd
Plays south. Dogleg right. 3 bunkers and water.
Green 31 yd deep, 30 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 218 yd
Plays north. 1 bunker and water.
Green 36 yd deep, 26 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 465 yd
Plays south-east. 2 bunkers.
Green 38 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 547 yd
Plays south. 3 bunkers.
Green 34 yd deep, 25 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 360 yd
Plays north. Dogleg left. 4 bunkers.
Green 31 yd deep, 23 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 190 yd
Plays north. 4 bunkers.
Green 34 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 400 yd
Plays north. Dogleg left. 3 bunkers.
Green 33 yd deep, 27 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.