Hole 1
Par 4 · 372 yd
Plays north-east. 1 bunker.
Green 32 yd deep, 22 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Carrollton, Ohio, USA
18 holes, par 71, about 6,090 yards (5,569 metres) along the hole lines. The par 3s are 5, 7, 13 and 17. The par 5s are 2, 10 and 18. The longest hole is the 18th at 503 yd, the shortest the 13th at 163 yd. The map shows 34 bunkers. Water is in play on holes 4, 5, 6 and 7.
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 · 372 yd
Plays north-east. 1 bunker.
Green 32 yd deep, 22 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 478 yd
Plays south. 1 bunker.
Green 25 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 369 yd
Plays north. 1 bunker.
Green 32 yd deep, 31 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 351 yd
Plays south-west. Dogleg left. 2 bunkers and water.
Green 28 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 171 yd
Plays north. 2 bunkers and water.
Green 42 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 388 yd
Plays south-west. Dogleg right. 3 bunkers and water.
Green 36 yd deep, 21 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 199 yd
Plays south-west. 1 bunker and water.
Green 37 yd deep, 17 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 401 yd
Plays north.
Green 34 yd deep, 20 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 329 yd
Plays north-west. Dogleg right. 1 bunker.
Green 39 yd deep, 22 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 470 yd
Plays north. 5 bunkers.
Green 36 yd deep, 23 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 361 yd
Plays south. 3 bunkers.
Green 38 yd deep, 22 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 352 yd
Plays north. 4 bunkers.
Green 37 yd deep, 26 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 163 yd
Plays north-east. 2 bunkers.
Green 27 yd deep, 33 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 317 yd
Plays west. Dogleg right. 2 bunkers.
Green 26 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 322 yd
Plays south. 4 bunkers.
Green 27 yd deep, 32 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 377 yd
Plays north-east. 4 bunkers.
Green 34 yd deep, 22 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 165 yd
Plays south. 1 bunker.
Green 20 yd deep, 32 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 503 yd
Plays south-west. Dogleg right. 5 bunkers.
Green 32 yd deep, 30 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.