Hole 1
Par 4 · 427 yd
Plays south-east. 3 bunkers.
Green 28 yd deep, 30 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Medinah, Illinois, USA
18 holes, par 72, about 7,537 yards (6,892 metres) along the hole lines. The par 3s are 2, 8, 13 and 17. The par 5s are 5, 7, 10 and 14. The longest hole is the 10th at 620 yd, the shortest the 17th at 187 yd. The map shows 119 bunkers. Water is in play on holes 2, 3, 12, 13, 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 · 427 yd
Plays south-east. 3 bunkers.
Green 28 yd deep, 30 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 188 yd
Plays south-east. 2 bunkers and water.
Green 30 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 405 yd
Plays south-west. 4 bunkers 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 4 · 454 yd
Plays north-east. 4 bunkers.
Green 31 yd deep, 26 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 528 yd
Plays south. 7 bunkers.
Green 28 yd deep, 32 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 494 yd
Plays south. 6 bunkers.
Green 37 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 608 yd
Plays north. Dogleg right. 8 bunkers.
Green 35 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 195 yd
Plays south-west. 3 bunkers.
Green 32 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 423 yd
Plays south-east. Dogleg left. 3 bunkers.
Green 34 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 620 yd
Plays west. 10 bunkers.
Green 32 yd deep, 21 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 432 yd
Plays north-east. Dogleg left. 8 bunkers.
Green 27 yd deep, 21 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 464 yd
Plays north. Water.
Green 38 yd deep, 26 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 212 yd
Plays north. 3 bunkers and water.
Green 26 yd deep, 30 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 608 yd
Plays south. 6 bunkers and water.
Green 24 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 370 yd
Plays south-west. 2 bunkers and water.
Green 33 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 478 yd
Plays north. Dogleg left. 3 bunkers and water.
Green 26 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 187 yd
Plays north. 2 bunkers and water.
Green 24 yd deep, 33 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 445 yd
Plays north. 5 bunkers and water.
Green 26 yd deep, 30 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.