Hole 1
Par 4 · 351 yd
Plays south. 2 bunkers.
Green 23 yd deep, 23 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Marysville, Ohio, USA
18 holes, par 72, about 5,851 yards (5,350 metres) along the hole lines. The par 3s are 2, 8, 10 and 13. The par 5s are 5, 7, 12 and 18. The longest hole is the 12th at 509 yd, the shortest the 8th at 131 yd. The map shows 28 bunkers. Water is in play on holes 3, 7, 8, 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 · 351 yd
Plays south. 2 bunkers.
Green 23 yd deep, 23 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 182 yd
Plays west.
Green 24 yd deep, 25 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 337 yd
Plays west. Dogleg left. 2 bunkers and water.
Green 22 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 271 yd
Plays north. 3 bunkers.
Green 21 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 412 yd
Plays east. Dogleg left.
Green 24 yd deep, 19 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 308 yd
Plays south-west. 2 bunkers.
Green 22 yd deep, 21 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 474 yd
Plays east. Dogleg right. 2 bunkers and water.
Green 22 yd deep, 21 yd wide. Falls 7% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 131 yd
Plays west. 2 bunkers and water.
Green 24 yd deep, 23 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 308 yd
Plays north-east. 2 bunkers.
Green 25 yd deep, 22 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 153 yd
Plays west. 2 bunkers.
Green 25 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 336 yd
Plays north. 1 bunker.
Green 22 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 509 yd
Plays north-west. Dogleg left. 1 bunker.
Green 24 yd deep, 24 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 170 yd
Plays south-east. 3 bunkers.
Green 25 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 352 yd
Plays south-east. Dogleg right. 3 bunkers and water.
Green 22 yd deep, 25 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 318 yd
Plays south-west. Dogleg right. 1 bunker and water.
Green 23 yd deep, 20 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 371 yd
Plays east. 1 bunker and water.
Green 23 yd deep, 19 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 377 yd
Plays west. 1 bunker and water.
Green 20 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 489 yd
Plays east. 3 bunkers and water.
Green 31 yd deep, 25 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.