Hole 1
Par 4 · 361 yd
Plays south-east. 1 bunker.
Green 33 yd deep, 30 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Chatham, Illinois, USA
18 holes, par 72, about 6,585 yards (6,021 metres) along the hole lines. The par 3s are 4, 8, 12 and 15. The par 5s are 2, 9, 11 and 16. The longest hole is the 2nd at 527 yd, the shortest the 4th at 166 yd. The map shows 22 bunkers. Water is in play on holes 7, 8, 9, 10, 12, 13, 14, 16, 17 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 · 361 yd
Plays south-east. 1 bunker.
Green 33 yd deep, 30 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 527 yd
Plays south-west. 5 bunkers.
Green 27 yd deep, 22 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 405 yd
Plays north-east.
Green 34 yd deep, 23 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 166 yd
Plays north-east. 2 bunkers.
Green 26 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 342 yd
Plays north. 2 bunkers.
Green 23 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 385 yd
Plays south. 1 bunker.
Green 31 yd deep, 21 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 363 yd
Plays north. 1 bunker and water.
Green 26 yd deep, 24 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 171 yd
Plays west. Water.
Green 17 yd deep, 33 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 463 yd
Plays south. Dogleg right. Water.
Green 25 yd deep, 21 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 402 yd
Plays north. 1 bunker and water.
Green 26 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 483 yd
Plays north-east. Dogleg left.
Green 31 yd deep, 17 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 186 yd
Plays north. 1 bunker and water.
Green 26 yd deep, 33 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 402 yd
Plays west. 2 bunkers and water.
Green 26 yd deep, 20 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 452 yd
Plays east. 1 bunker and water.
Green 30 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 201 yd
Plays south. 2 bunkers.
Green 27 yd deep, 26 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 521 yd
Plays west. 1 bunker and water.
Green 24 yd deep, 30 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 361 yd
Plays east. Water.
Green 32 yd deep, 23 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 394 yd
Plays south. Dogleg left. 3 bunkers and water.
Green 26 yd deep, 23 yd wide. Falls 1% 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.