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Clwb Golff Porthmadog is a golf course in the United Kingdom. 18 holes are surveyed here from OpenStreetMap, 6,369 yd5,824 m of playing length in total, at par 71. The longest hole is number 17 at 560 yd512 m, the shortest number 9 at 157 yd144 m. Worked out in advance: the distance to the front and the back edge of the green for 17 holes as well as the carry distance over 51 bunkers for 14 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 Clwb Golff Porthmadog. 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 | 18 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.
| HOLE | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | OUT |
|---|---|---|---|---|---|---|---|---|---|---|
| PAR | 4 | 3 | 5 | 4 | 4 | 3 | 5 | 5 | 3 | 36 |
| LENGTH | 352 yd322 m | 167 yd153 m | 525 yd480 m | 452 yd413 m | 385 yd352 m | 159 yd145 m | 512 yd468 m | 471 yd431 m | 157 yd144 m | 3,180 yd2,908 m |
| GREEN DEPTH | 34 yd31 m | 28 yd26 m | 32 yd29 m | 36 yd33 m | 39 yd36 m | 31 yd28 m | 38 yd35 m | 38 yd35 m | · | · |
| ELEVATION | -1 yd-1 m | 0 yd0 m | -2 yd-2 m | +1 yd0 m | -1 yd-1 m | -1 yd-1 m | +1 yd0 m | +7 yd+6 m | -12 yd-11 m | · |
| HOLE | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | IN |
|---|---|---|---|---|---|---|---|---|---|---|
| PAR | 4 | 3 | 4 | 3 | 4 | 4 | 4 | 5 | 4 | 35 |
| LENGTH | 371 yd339 m | 217 yd198 m | 357 yd326 m | 200 yd183 m | 390 yd357 m | 379 yd347 m | 318 yd291 m | 560 yd512 m | 397 yd363 m | 3,189 yd2,916 m |
| GREEN DEPTH | 31 yd28 m | 24 yd22 m | 19 yd17 m | 28 yd26 m | 28 yd26 m | 44 yd40 m | 26 yd24 m | 27 yd25 m | 31 yd28 m | · |
| ELEVATION | -2 yd-2 m | +1 yd+1 m | +4 yd+4 m | -17 yd-15 m | -2 yd-2 m | +4 yd+4 m | -2 yd-2 m | 0 yd0 m | +1 yd0 m | · |
For 18 of the 18 holes the elevation profile is calculated. Hole 13 has the most cumulative elevation change along the played line: 17 yd (0 yd up, 17 yd down; -17 yd net tee to green).Hole 13 has the most cumulative elevation change along the played line: 15 m (0 m up, 15 m down; -15 m net tee to green). The basis are official elevation models (GB-WAL).
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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