Sebonack drawn from GolfCore's traced course vectors — fairways, tees, greens, bunkers and water, in the app's own colors. This is the same geometry the app maps a round on.

27Greens Mapped 454Elevation Contours 14.0%Steepest Slope 18Holes 72Par 12Rated Tees

Green contour map of Sebonack in Southampton, New York — 454 elevation contours at a 3-inch interval with fall-line arrows, traced from 1-meter lidar — One of 27 mapped greens at Sebonack, drawn from GolfCore's contour data baked from USGS 3DEP 1-meter lidar, in the same colors the app uses. Elevation bands run cool-low to warm-high; white lines are contours at a 3-inch interval, and dark arrows point down the fall line.

The course, by the numbers

Location	Southampton, New York, United States
Address	405 Sebonac Road, Southampton, NY
Phone	(631) 622-9478
Website	sebonack.com
Holes	18
Par	72
Tees on the card	12, 12 USGA-rated
Greens mapped	27
Elevation contours	454
Contour interval	3-inch
Largest green elevation span	7.1 ft
Steepest measured slope	14.0%
Course map	Traced hole by hole
Wind modeling	Live wind grid, 16 directions
Tree canopy	1-meter canopy height model
Course data updated	2026-09-01

The card

Tees

6,342 yds · Par 72 · Rating 72.5 · Slope 137

Hole	1	2	3	4	5	6	7	8	9	Out
Par	4	4	4	3	4	4	4	3	5	35
Yards	316	391	377	183	309	341	402	144	483	2,946
Hcp	15	1	5	13	17	7	3	11	9

Hole	10	11	12	13	14	15	16	17	18	In
Par	4	4	3	5	4	5	4	3	5	37
Yards	324	401	121	495	357	536	331	152	501	3,218
Hcp	14	2	18	6	10	8	4	16	12

Total72 Yards6,164

Hole	Par	Yards	Hcp
1	4	316	15
2	4	391	1
3	4	377	5
4	3	183	13
5	4	309	17
6	4	341	7
7	4	402	3
8	3	144	11
9	5	483	9
Out	35	2,946
10	4	324	14
11	4	401	2
12	3	121	18
13	5	495	6
14	4	357	10
15	5	536	8
16	4	331	4
17	3	152	16
18	5	501	12
In	37	3,218
Total	72	6,164

Course rating and slope

Tee	Yards	Par	Rating / Slope
Black	7,512	72	77.5 / 151
Black/Blue	7,180	72	76.0 / 149
Blue	6,924	72	74.9 / 146
Blue/White	6,640	72	73.3 / 142
White	6,342	72	72.5 / 137 79.1 / 144 (W)
White/Green	6,022	72	77.4 / 140 (W)
White/Green	5,886	72	70.4 / 133
Green	5,574	72	74.8 / 135 (W)
Red/Green	5,314	72	73.2 / 132 (W)
Green	5,288	72	67.6 / 128
Red	4,672	72	69.0 / 124 (W)

Hole data is what GolfCore holds for the course's layout. Picking a tee shows that tee's own yardages, pars and stroke indexes where the club has rated them. Clubs correct their own data in the app.

What GolfCore has for Sebonack

GolfCore's library covers Sebonack Golf Club green by green: 27 putting surfaces traced with 454 elevation contours from USGS 3DEP 1-meter lidar. The steepest measured slope on these greens tilts at 14.0 percent — the difference between a putt that dies at the hole and one that runs four feet past.

In the app, players and caddies read the same data live on the course: contour bands with fall-line arrows, wind simulated at the player's position, and pin positions that clubs on GolfCore set each morning. Sebonack Golf Club is one of more than six thousand courses GolfCore has mapped green by green.

For clubs, the same system runs the tee sheet and the caddie yard — assignments off real tee times, SMS confirmations, and a caddie network that spans every club on the platform. Read how caddie management on GolfCore works.

Courses nearby

Staff at Sebonack can claim this course by signing in with an email address at the club's own domain. That sets the club up on GolfCore with you as an administrator.

GolfCore maps courses from public elevation data and is not affiliated with or endorsed by Sebonack. Represent this club? Request changes or removal through our contact page.