OpenYardage
TO THE APP
Sea Golf Rönnäs is a golf course in Finland. 11 holes are surveyed here from OpenStreetMap, 3,084 m of playing length in total, at par 42. The longest hole is number 13 at 438 m, the shortest number 12 at 107 m. Worked out in advance: the distance to the front and the back edge of the green for 11 holes as well as the carry distance over 27 bunkers and 5 water hazards for 11 holes.
Yardage book for Sea Golf Rönnäs. 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.
Par and stroke index are on record for every hole, so the card is complete. Not every club publishes its scorecard; this one is put together from the open data of OpenStreetMap and is not the club's official card. For a counting round the card from the pro shop is the one that applies.
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.
TABLE SCROLLS SIDEWAYS
| HOLE | PAR | STROKE INDEX | LENGTH | GREEN FRONT · MIDDLE · BACK | GREEN DEPTH | CARRY DISTANCES FROM THE TEE |
|---|---|---|---|---|---|---|
| 1 | 4 | 15 | 305 m | 285 · 301 · 318 m | 33 m | Bunker 194 to 202 m left · Water 257 to 303 m left · Bunker 297 to 322 m right · and 1 more |
| 4 | 3 | 16 | 136 m | 96 · 111 · 128 m | 32 m | Water 19 to 161 m right · Bunker 91 to 124 m left |
| 10 | 4 | 12 | 312 m | 290 · 309 · 331 m | 41 m | Bunker 305 to 312 m left |
| 11 | 4 | 7 | 317 m | 301 · 316 · 332 m | 31 m | Bunker 171 to 183 m right · Bunker 194 to 205 m right · Bunker 293 to 311 m right |
| 12 | 3 | 17 | 107 m | 96 · 105 · 116 m | 20 m | Water 53 to 104 m right |
| 13 | 5 | 6 | 438 m | 422 · 442 · 459 m | 37 m | Bunker 147 to 162 m right · Bunker 184 to 202 m right · Water 195 to 399 m right · and 2 more |
| 14 | 3 | 18 | 152 m | 131 · 153 · 177 m | 47 m | Water 2 to 225 m right · Bunker 134 to 169 m right |
| 15 | 4 | 10 | 338 m | 319 · 338 · 356 m | 37 m | Bunker 172 to 229 m left · Bunker 292 to 317 m right · Bunker 332 to 342 m left |
| 16 | 4 | 11 | 332 m | 320 · 333 · 344 m | 25 m | Bunker 326 to 344 m left |
| 17 | 4 | 5 | 354 m | 330 · 354 · 379 m | 49 m | Bunker 150 to 219 m left · Bunker 349 to 371 m right · Bunker 359 to 377 m left |
| 18 | 4 | 14 | 293 m | 273 · 293 · 312 m | 40 m | Bunker 143 to 161 m left · Bunker 183 to 194 m left · Bunker 201 to 222 m right · and 4 more |
| 11 HOLES | 42 | 3,084 m |
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 or correct it in OpenStreetMap straight away. Data as of 2026-07-31.
Free, no advertising, a community project.