The Old Course 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.

3Greens Mapped 15Elevation Contours 4.3%Steepest Slope 18Holes 68Par 4Rated Tees

Green contour map of The Old Course in Portstewart, United Kingdom — 15 elevation contours at a 8-centimeter interval with fall-line arrows, traced from 1-meter lidar — One of 3 mapped greens at The Old Course, drawn from GolfCore's contour data baked from 1-meter national lidar elevation data, in the same colors the app uses. Elevation bands run cool-low to warm-high; white lines are contours at a 8-centimeter interval, and dark arrows point down the fall line.

The course, by the numbers

Location	Portstewart, United Kingdom
Address	117 Strand Rd, Portstewart BT55 7PG, United Kingdom
Phone	+44 28 7083 2015
Website	portstewartgc.co.uk
Holes	18
Par	68
Tees on the card	4, 4 USGA-rated
Greens mapped	3
Elevation contours	15
Contour interval	8-centimeter
Largest green elevation span	0.40 m
Steepest measured slope	4.3%
Course map	Traced hole by hole
Course data updated	2026-09-01

The card

Tees

4,471 yds · Par 65 · Rating 62.1 · Slope 94

Hole	1	2	3	4	5	6	7	8	9	Out
Par	4	3	4	3	4	5	4	4	4	35
Yards	422	180	372	178	323	509	447	347	277	3,055
Hcp	14	18	8	16	4	2	6	10	12

Hole	10	11	12	13	14	15	16	17	18	In
Par	4	4	4	3	4	3	4	3	4	33
Yards	412	348	330	171	366	142	332	165	353	2,619
Hcp	7	1	3	13	9	17	15	5	11

Total68 Yards5,674

Hole	Par	Yards	Hcp
1	4	422	14
2	3	180	18
3	4	372	8
4	3	178	16
5	4	323	4
6	5	509	2
7	4	447	6
8	4	347	10
9	4	277	12
Out	35	3,055
10	4	412	7
11	4	348	1
12	4	330	3
13	3	171	13
14	4	366	9
15	3	142	17
16	4	332	15
17	3	165	5
18	4	353	11
In	33	2,619
Total	68	5,674

Course rating and slope

Tee	Yards	Par	Rating / Slope
White	4,471	66	62.1 / 94 65.8 / 104 (W)
Red	4,113	66	63.7 / 99 (W)
Red	4,106	65	60.8 / 89

Hole data is what GolfCore holds for the course's layout. Clubs correct their own data in the app.

What GolfCore has for The Old Course

GolfCore's library covers The Old Course - Portstewart Golf Club green by green: 3 putting surfaces traced with 15 elevation contours from 1-meter national lidar elevation data. The steepest measured slope on these greens tilts at 4.3 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, and pin positions that clubs on GolfCore set each morning. The Old Course - Portstewart 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 The Old Course 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 The Old Course. Represent this club? Request changes or removal through our contact page.