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Rock Manor Golf Club is an 18-hole public course in Wilmington, Delaware.

Designed by Lester George. It plays 6,405 yards from the Black tees, rated 71.2/126 (checked 2026-08-21).

Create a free account to save Rock Manor Golf Club to My Game, where every course you save is measured against the rest of its state on the figures it publishes.
18
holes
71
par
6,405
yards (tips)
126
slope (black)
The shape of the round · Black teespublished figures only
HOLE ORDER — BLACK TEES563424139405333410200388500359509180562173383315384178152433445464738495104115123135143154164174183PAROUT 3,362 YDSIN 3,043 YDSFIRST NINESECOND NINE
The published card in playing order, 18 holes with the two nines split — hole number under each bar, its par below that.

The course

designer
Lester George reported
access
public
address
1319 Carruthers Ln, Wilmington, DE 19803, USA
elevation
234 ft derived
opened
1937
on site
lessons

39.77017, -75.53881 — open on OpenStreetMap →

The course, from above

This map shows 14 of 18 holes. OpenStreetMap has not traced holes 10–12 and 14. 33 mapped features sit close to more than one hole and are drawn with the nearer one. The map below draws everything that has been traced.

202 traced features across 8 layers for Rock Manor Golf Club, drawn over NAIP 2023 aerial imagery.

Use arrow keys to pan, plus and minus to zoom. Tab reaches the map controls.

202 traced features across 8 layers for Rock Manor Golf Club, drawn over NAIP 2023 aerial imagery. The map itself needs JavaScript; the geometry is a plain GeoJSON file either way.

14
Holes
18
Fairways
58
Bunkers
7
Water
14
Greens
56
Tee pads
5,184yds
Black tees
563yds
Longest hole
139yds
Shortest hole

Imported from OpenStreetMap, edges unchecked · USDA NAIP 2023-07-11

Tees & ratings

Yardagesfrom the clubchecked 2026-08-21

All 6 tee sets par, yardage, course rating, slope — the full table

Sorted by Yards, descending. 6 rows.

BlackM71640571.2from the club12633623043
WhiteM71600169.0from the club12331642837
GreenF71529569.8from the club11927702525
GreenM71529566.1reported, not from the club11227702525
RedF71466866.0from the club11124162252
RedM71466863.3reported, not from the club10624162252

Every figure as published; a blank cell is one nobody publishes. Front 9 and Back 9 are summed from the per-hole yardages on the scorecard.

These ratings do not all come from the same place, so each row says which: from the club where the course's own card prints that figure, reported where it does not.

Scorecard — every published tee

Scorecardfrom the clubchecked 2026-08-21

Hole 123456789101112131415161718 Total
Par 543444345453534443 71
Black 563424139405333410200388500359509180562173383315384178 6,405
White 528404124380311398172369478345481157547159348285361154 6,001
Green 487332100347196360146344458312433123471122330268348118 5,295
Red 40330180320178302115327390278402774439730724431391 4,668
Handicap 155177911311381262141018416

The Studio

The Studio can't plan Rock Manor Golf Club hole by hole yet.

We hold its scorecard and 202 traced features, but not a model of every green, which a plan aims at.

It plans 4,579 courses hole by hole today, and it charts your bag anywhere.

  • The approach, planned A Studio approach map on the aerial photo: a lob wedge aimed at the island green, its spread drawn as a dashed ring over the water, and the side it most often misses. Example from another course: hole 15, Resort tee, Stadium Course at TPC Scottsdale
  • The green, from LiDAR A Studio green view on the aerial photo: arrows for the slope a LiDAR survey measured, the area a cup could be cut, and the safer side to miss. Example from another course: hole 15, Stadium Course at TPC Scottsdale
  • Every shot, tee to green A Studio plan on the aerial photo of a desert par 4: the driver off the tee and a 7-iron into the green between the bunkers, each shot with its landing spread drawn as a dashed ring. Example from another course: hole 2, Resort tee, Stadium Course at TPC Scottsdale

See the courses it plans Open the Studio

Pictures: Studio output for a sample golfer, drawn 2026-10-15. The Studio needs a free account. AI can make mistakes.

© OpenStreetMap contributors

Book a tee time

Rates change by day and by season, so we send you to Rock Manor Golf Club's own booking page rather than quoting a figure that was true the week we captured it.

Check tee times and rates

Measured against comparable courses

How hard and how long this course plays against comparable courses — never how good it is.

FigureThis courseIn DelawareNationwideAmong its peers
Longest6,405 yds30th of 42=6,739th of 12,025=1,824th of 4,105 public courses · =3,397th of 7,004 courses you can book · =6,677th of 9,017 18-hole regulation courses
Toughest testslope 126=27th of 33=5,028th of 8,710=1,194th of 2,882 public courses · =2,360th of 4,936 courses you can book · =4,838th of 7,089 18-hole regulation courses
Hardest from the tipsrating 71.226th of 33=4,997th of 7,615=1,281st of 2,412 public courses · =2,411th of 4,145 courses you can book · =4,927th of 7,034 18-hole regulation courses
Widest tee spread1,737 yds between tees20th of 42=3,869th of 11,523=1,042nd of 3,841 public courses · =1,988th of 6,653 courses you can book · =3,811th of 8,962 18-hole regulation courses
Oldestopened 19373rd of 33=2,044th of 9,368=423rd of 3,277 public courses · =859th of 5,526 courses you can book · =1,491st of 7,001 18-hole regulation courses
Highest above sea level234 ft derived 10th of 44=8,839th of 12,437=3,401st of 4,289 public courses · =5,534th of 7,274 courses you can book · =6,341st of 9,106 18-hole regulation courses

A published figure is compared only against the courses that publish it too, which is why the totals differ from row to row — a state's length field is the courses with a scorecard, not the courses in the state. Height above sea level is the exception: we derive it from a coordinate, so its field is very nearly every course we render. Ties share an ordinal and are marked =. How this is computed →

What's on this page

In progress2 of 6 built

2 of 6 parts of this course page are built, and we're filling in the rest.

  • Scorecard, built.Par and yardage for every hole, from 6 sets of tees.
  • Course rating and slope, built.Rated from 6 sets of tees.
  • Course map, partly built.14 of the 18 greens are drawn — the rest of the course isn't mapped yet.
  • Per-hole distances, partly built.14 of the 18 holes are traced — the others have no measured distances yet.
  • Green contours, not built yet.We haven't built the green contours for this course yet.
  • Course details, partly built.5 of 7 background details — we don't hold a phone number and the grass on the greens.

The site is in beta and the database is still being built, so expect gaps. Know something we don't? Help us fill it in — a link to where it's published is worth more than anything else you could send.

Sources

Gathered from the course's own site and public records — every figure on this page is traceable to who published it and when. Spot an error or a gap? Tell us.

Location and identity seeded from OpenStreetMap — © OpenStreetMap contributors, ODbL. Last checked 2026-08-30. Where each figure came from is stated beside it, above.

Compare this course →

Or go straight to a comparison: vs Dupont Country Club Championship Course · vs Dupont Country Club Montchanin Course · vs Dupont Country Club Montchanin Course

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Straight-line distance from this course's coordinates, within 60 miles — not driving distance, and it crosses state lines where the nearest courses are over one.

Know something about this course? 10 fields we don't hold — or tell us something here is wrong