Hole 1
Par 3 · 79 yd
Plays north-east. Water.
Green 22 yd deep, 24 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Westford, Massachusetts, USA
9 holes, par 27, about 622 yards (569 metres) along the hole lines. The par 3s are 1, 2, 3, 4, 5, 6, 7, 8 and 9. The longest hole is the 6th at 101 yd, the shortest the 2nd at 38 yd. The map shows no bunkers. Water is in play on holes 1, 2, 3, 4, 5, 7 and 8.
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 3 · 79 yd
Plays north-east. Water.
Green 22 yd deep, 24 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 38 yd
Plays north-west. Water.
Green 24 yd deep, 20 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 55 yd
Plays north-east. Water.
Green 30 yd deep, 21 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 59 yd
Plays south-east. Water.
Green 25 yd deep, 21 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 83 yd
Plays south. Water.
Green 24 yd deep, 23 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 101 yd
Plays west.
Green 22 yd deep, 24 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 82 yd
Plays north. Water.
Green 21 yd deep, 23 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 59 yd
Plays south. Water.
Green 25 yd deep, 22 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 67 yd
Plays west.
Green 23 yd deep, 22 yd wide. Falls 5% 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.