Hole 1
Par 4 · 365 yd
Plays south-west. 5 bunkers and water.
Green 40 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Glen Ellyn, Illinois, USA
18 holes, par 72, about 7,178 yards (6,564 metres) along the hole lines. The par 3s are 3, 8, 11 and 17. The par 5s are 2, 6, 15 and 16. The longest hole is the 15th at 577 yd, the shortest the 8th at 154 yd. The map shows 153 bunkers. Water is in play on holes 1, 2, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 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 · 365 yd
Plays south-west. 5 bunkers and water.
Green 40 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 574 yd
Plays north. 8 bunkers and water.
Green 35 yd deep, 30 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 203 yd
Plays south-west. 5 bunkers.
Green 33 yd deep, 39 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 466 yd
Plays south. 10 bunkers and water.
Green 42 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 402 yd
Plays west. Dogleg left. 6 bunkers and water.
Green 39 yd deep, 34 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 552 yd
Plays north. 10 bunkers and water.
Green 42 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 437 yd
Plays south. 16 bunkers and water.
Green 40 yd deep, 28 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 154 yd
Plays east. 4 bunkers and water.
Green 28 yd deep, 45 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 442 yd
Plays north. 12 bunkers and water.
Green 40 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 359 yd
Plays north. 8 bunkers and water.
Green 39 yd deep, 26 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 194 yd
Plays south-east. 6 bunkers.
Green 31 yd deep, 37 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 350 yd
Plays south. 10 bunkers and water.
Green 36 yd deep, 37 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 487 yd
Plays north. 8 bunkers.
Green 38 yd deep, 25 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 436 yd
Plays west. Dogleg right. 6 bunkers and water.
Green 39 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 577 yd
Plays east. Dogleg left. 9 bunkers and water.
Green 33 yd deep, 33 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 551 yd
Plays south. Dogleg left. 6 bunkers and water.
Green 31 yd deep, 33 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 203 yd
Plays north-east. 4 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 4 · 425 yd
Plays south-west. Dogleg right. 8 bunkers and water.
Green 37 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.