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Trethorne Golf Club is a golf course in the United Kingdom. 18 holes are surveyed here from OpenStreetMap, 6,276 yd5,738 m of playing length in total, at par 71. The longest hole is number 6 at 509 yd465 m, the shortest number 16 at 141 yd129 m. Worked out in advance: the distance to the front and the back edge of the green for 18 holes as well as the carry distance over 21 bunkers and 5 water hazards for 15 holes. For 18 holes the elevation change between tee and green is on record as well.
Every hazard carries two numbers: the first reaches its near edge, the second carries past it. Drawn from OpenStreetMap, exactly as the app draws it.
Yardage book for Trethorne Golf Club. In OpenYardage every hole is a drawing, with distance rings, your own notes hole by hole and your club choice. Books by other players can be read, copied and printed as an A6 booklet.
OPEN THE COURSE IN THE APPReading needs no account. Writing your own book does.
Never played with a yardage book? What goes in one and how to read it
| TAG | MISSING ON | WHAT FOR |
|---|---|---|
| handicap | 15 of 18 holes | Stroke index, net scoring |
In OpenStreetMap this belongs on the individual hole, not on the course; anyone who plays here can add it there for everyone: edit in FairwayMapper · look at the course in OpenStreetMap · open the editor right away.
All figures in yards, converted from the metre values in OpenStreetMap.All figures in metres. The length follows the line of play from the back tee to the middle of the green and takes a dogleg with it. Carry distances count from the tee to the near edge and to the far edge of the hazard. The stroke index ranks the holes by difficulty from 1 to 18 and decides where net strokes fall.
| HOLE | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | OUT |
|---|---|---|---|---|---|---|---|---|---|---|
| PAR | 4 | 4 | 5 | 4 | 3 | 5 | 4 | 3 | 4 | 36 |
| STROKE INDEX | · | · | · | · | · | · | · | · | · | · |
| LENGTH | 382 yd349 m | 324 yd296 m | 483 yd442 m | 288 yd263 m | 164 yd150 m | 509 yd465 m | 371 yd339 m | 202 yd185 m | 378 yd346 m | 3,101 yd2,835 m |
| GREEN DEPTH | 27 yd25 m | 24 yd22 m | 22 yd20 m | 26 yd24 m | 26 yd24 m | 25 yd23 m | 35 yd32 m | 16 yd15 m | 30 yd27 m | · |
| ELEVATION | -15 yd-14 m | -22 yd-20 m | -32 yd-30 m | +13 yd+12 m | +7 yd+6 m | -34 yd-31 m | +27 yd+24 m | -12 yd-11 m | +5 yd+5 m | · |
| HOLE | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | IN |
|---|---|---|---|---|---|---|---|---|---|---|
| PAR | 4 | 4 | 4 | 3 | 5 | 4 | 3 | 4 | 4 | 35 |
| STROKE INDEX | · | · | · | · | · | 7 | 5 | · | 10 | · |
| LENGTH | 383 yd350 m | 408 yd373 m | 364 yd333 m | 163 yd149 m | 505 yd462 m | 468 yd428 m | 141 yd129 m | 421 yd385 m | 322 yd294 m | 3,175 yd2,903 m |
| GREEN DEPTH | 30 yd27 m | 37 yd34 m | 28 yd26 m | 30 yd27 m | 35 yd32 m | 34 yd31 m | 23 yd21 m | 28 yd26 m | 33 yd30 m | · |
| ELEVATION | -13 yd-12 m | -11 yd-10 m | -18 yd-17 m | -11 yd-10 m | +27 yd+25 m | -28 yd-26 m | +4 yd+4 m | +29 yd+27 m | +21 yd+19 m | · |
For 18 of the 18 holes the elevation profile is calculated. Hole 3 has the most cumulative elevation change along the played line: 38 yd (3 yd up, 35 yd down; -32 yd net tee to green).Hole 3 has the most cumulative elevation change along the played line: 36 m (3 m up, 33 m down; -30 m net tee to green). The basis are official elevation models (GB-EA).
Two numbers to every hazard: the first reaches its near edge, the second carries past it. Land between the two and you are in it.
Bunker Red penalty area Water · yards from the teemetres from the tee · L left · R right
The basis is the map of this course in OpenStreetMap. Lengths, distances to the green edge and carry distances are calculated from it, not copied: every hole is projected onto its line of play and the arc length from the tee is counted. This replaces neither an official course measurement nor the club's scorecard. If you spot a mistake you can report it through the course page in the app, map it in FairwayMapper or correct it in OpenStreetMap straight away. Data as of 2026-09-14.
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