Hole 1
Par 4 · 372 yd
Plays north-west. 2 bunkers.
Green 26 yd deep, 21 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
John F. Byrne course map
Every hole, numbered, as the app draws it.
John F. Byrne hole by hole
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.
Hole 2
Par 3 · 200 yd
Plays south-east. 1 bunker.
Green 21 yd deep, 17 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Hole 3
Par 4 · 261 yd
Plays north-east.
Green 25 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Hole 4
Par 4 · 246 yd
Plays south-west.
Green 23 yd deep, 20 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Hole 5
Par 3 · 144 yd
Plays north-west. 2 bunkers.
Green 27 yd deep, 22 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Hole 6
Par 4 · 376 yd
Plays south-east. 5 bunkers.
Green 22 yd deep, 19 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Hole 7
Par 4 · 282 yd
Plays north-east. 1 bunker.
Green 28 yd deep, 21 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Hole 8
Par 3 · 156 yd
Plays north-west.
Green 23 yd deep, 21 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Hole 9
Par 4 · 293 yd
Plays south-west.
Green 16 yd deep, 17 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Hole 10
Par 4 · 328 yd
Plays north-west. 3 bunkers.
Green 25 yd deep, 22 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Hole 11
Par 3 · 157 yd
Plays north. 1 bunker.
Green 23 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Hole 12
Par 5 · 516 yd
Plays south-west.
Green 25 yd deep, 25 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Hole 13
Par 3 · 101 yd
Plays west. 1 bunker.
Green 28 yd deep, 26 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Hole 14
Par 3 · 230 yd
Plays north-east.
Green 33 yd deep, 16 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Hole 15
Par 3 · 165 yd
Plays north-east.
Green 26 yd deep, 23 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Hole 16
Par 5 · 486 yd
Plays south-west. 2 bunkers.
Green 30 yd deep, 22 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Hole 17
Par 4 · 269 yd
Plays north-east. 2 bunkers.
Green 28 yd deep, 19 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Hole 18
Par 4 · 338 yd
Plays south-east. 4 bunkers.
Green 22 yd deep, 21 yd wide. Falls 7% overall. An arrow every 4 m here, every 2 m in the app.
Hole distances
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
John F. Byrne in your pocket
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.
Courses near John F. Byrne
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.