Onwentsia Club
Lake Forest, Illinois · 18 holes · par 71 · Private. Designed by James Foulis, C.B. Macdonald, Willie Watson, Dick Nugent, Brad Bartell, Tom Doak, Bruce Hepner, opened 1895.
A caddie's yardage book for every hole: plays-like distance from USGS lidar elevation, reach and carry numbers for every bunker and water hazard, green front, middle and back, which way each green falls, and the lay-up zone on par 5s. Distances are from the back tees along the mapped hole; for a shorter tee, take off the scorecard difference.
Course profile
- At about 670 ft the ball carries about 1% farther than at sea level, so a 150-yard shot plays like about 149. Golfers visiting from low elevation should expect to club down.
- Biggest climb: hole 8, where the green sits 23 ft above the tee and plays about 8 yards longer.
- Biggest drop: hole 10, where the green sits 36 ft below the tee and plays about 12 yards shorter.
- 16 greens tilt 2% or more. Each hole below says which side of the hole leaves an uphill putt.
Maps: tee at the bottom, green at the top. The dashed line is the mapped hole; the gold band is the lay-up zone; the arrow on the green points downhill.
Scorecard
| Hole | Par | Hcp | Black | Blue | White | Gold |
|---|---|---|---|---|---|---|
| 1 | 5 | 9 | 499 | 478 | 466 | 458 |
| 2 | 4 | 13 | 399 | 388 | 364 | 342 |
| 3 | 5 | 11 | 520 | 487 | 466 | 419 |
| 4 | 4 | 1 | 418 | 401 | 385 | 359 |
| 5 | 3 | 17 | 172 | 159 | 147 | 121 |
| 6 | 4 | 5 | 367 | 363 | 337 | 312 |
| 7 | 4 | 3 | 411 | 397 | 367 | 322 |
| 8 | 4 | 7 | 426 | 414 | 371 | 343 |
| 9 | 3 | 15 | 210 | 188 | 175 | 167 |
| 10 | 5 | 16 | 545 | 514 | 459 | 452 |
| 11 | 3 | 12 | 191 | 180 | 157 | 141 |
| 12 | 4 | 6 | 450 | 430 | 395 | 361 |
| 13 | 4 | 4 | 434 | 425 | 391 | 372 |
| 14 | 3 | 18 | 192 | 176 | 160 | 141 |
| 15 | 4 | 14 | 344 | 331 | 313 | 285 |
| 16 | 4 | 2 | 376 | 348 | 326 | 266 |
| 17 | 4 | 10 | 321 | 300 | 283 | 239 |
| 18 | 4 | 8 | 441 | 420 | 362 | 406 |
Tees
| Tee | Yards | Rating | Slope | |
|---|---|---|---|---|
| Black | Male | 6681 | 72.2 | 128 |
| Blue | Male | 6432 | 70.9 | 125 |
| White | Male | 5979 | 68.8 | 119 |
| Gold | Male | 5460 | 71.6 | 120 |
Hole 1 · Par 5
- Plays like
- 490-27 ft
- Green · Black tee
- 482 · 499 · 515front · middle · back
- Green size
- 34 × 25yards deep × wide
- Fairway
- 48 ydswide at 226
- Green slope
- 2%falls to the front-left
In play
- 2 bunkers right: 241 to reach, 265 to carry
- Bunker right: 412 to reach, 425 to carry
- Bunker front of the green
- Bunker front-left of the green
- Bunker front-right of the green
Playing notes
- Plays about 9 yards shorter: the green sits 27 ft below the tee.
- Dogleg right at about 275 yards.
- Fairway bunkers on the right: 241 to reach, 265 to carry. Drives that finish short of 241 stay clear; otherwise the left side is the safer line off the tee.
- The fairway is about 48 yards wide at 226 and narrows to 35 at 256.
- Best lay-up: 70 to 170 yards from the green, where the fairway is about 29 yards wide with no bunkers or water within 16 yards.
- Hazards guard both sides of the green; aim for the middle.
- Bunkers short of the green; take enough club to carry it.
- The green falls from back-right to front-left, about 2%. Finish on the front-left side of the hole for an uphill putt.
Hole 2 · Par 4
- Plays like
- 393-19 ft
- Green · Black tee
- 379 · 399 · 413front · middle · back
- Green size
- 34 × 29yards deep × wide
- Fairway
- 34 ydswide at 227
In play
- Water right: 267 to reach, 374 to carry
- Bunker front-left of the green
- Bunker right of the green
Playing notes
- Plays about 6 yards shorter: the green sits 19 ft below the tee.
- Fairway water on the right: 267 to reach, 374 to carry. Drives that finish short of 267 stay clear; otherwise the left side is the safer line off the tee.
- The fairway is about 34 yards wide at 227.
- Hazards guard both sides of the green; aim for the middle.
Hole 3 · Par 5
- Plays like
- 525+15 ft
- Green · Black tee
- 501 · 520 · 538front · middle · back
- Green size
- 39 × 24yards deep × wide
- Fairway
- 36 ydswide at 229
- Green slope
- 2.5%falls to the front-left
In play
- 3 bunkers right: 226 to reach, 294 to carry
- Bunker left: 264 to reach, 285 to carry
- Bunker right: 422 to reach, 438 to carry
- Bunker left: 453 to reach, 480 to carry
- Bunker front-left of the green
Playing notes
- Plays about 5 yards longer: the green sits 15 ft above the tee.
- Hazards on both sides of the fairway from 226 yards; a tee shot that finishes short of 226 keeps them out of play.
- The fairway is about 36 yards wide at 229.
- Best lay-up: 110 to 170 yards from the green, where the fairway is about 37 yards wide with no bunkers or water within 16 yards.
- The green is guarded on the left by bunkers; miss right.
- The green falls from back-right to front-left, about 2.5%. Finish on the front-left side of the hole for an uphill putt.
- The green is 39 yards deep: a back pin can play about 3 clubs more than a front pin.
Holes 4 to 18
4 · Par 45 · Par 36 · Par 47 · Par 48 · Par 49 · Par 310 · Par 511 · Par 312 · Par 413 · Par 414 · Par 315 · Par 416 · Par 417 · Par 418 · Par 4
The rest of this guide has the same caddie detail for every hole:
- 15 plays-like yardages
- 58 hazards with reach and carry
- 15 green slope reads
- 1 par-5 lay-up zones
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Hole maps, hazards and playing notes come from mapped course data and USGS 3DEP elevation (public domain), not a visit. Plays-like numbers use the Skitty caddie's rule of one yard per 3 ft of rise, from the longest tee; altitude uses 1.16% of carry per 1,000 ft. Tees, hazards and conditions change; check with the course before you play. Map data © OpenStreetMap contributors (ODbL 1.0) via OpenGolfAPI. Scorecard yardages and ratings as published. See a mistake? Email [email protected].