Open Greg Mastriona Hills in GolfCore Get the free app
Plan your visit
9653 W 98th Ave, Westminster, CO 80021
Check visitor access, current green fees and tee-time availability directly with the course before travelling.
The course, by the numbers
| Location | Westminster, Colorado, United States |
|---|---|
| Address | 9653 W 98th Ave, Westminster, CO 80021 |
| Phone | +1 303-650-7400 |
| Website | thunderridgeresort.com |
| Holes | 9 |
| Par | 27 |
| Tees on the card | 2, 2 USGA-rated |
| Greens mapped | 10 |
| Elevation contours | 62 |
| Contour interval | 3-inch |
| Largest green elevation span | 3.1 ft |
| Steepest measured slope | 7.8% |
| Course map | Traced hole by hole |
| Wind modeling | Live wind grid, 16 directions |
| Tree canopy | 1-meter canopy height model |
| Course data updated | 2026-08-11 |
The card
| Hole | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | Out |
|---|---|---|---|---|---|---|---|---|---|---|
| Par | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 27 |
| Yards | 52 | 73 | 81 | 74 | 64 | 121 | 162 | 59 | 137 | 823 |
| Hcp | 7 | 5 | 6 | 3 | 9 | 4 | 1 | 8 | 2 |
| Hole | Par | Yards | Hcp |
|---|---|---|---|
| 1 | 3 | 52 | 7 |
| 2 | 3 | 73 | 5 |
| 3 | 3 | 81 | 6 |
| 4 | 3 | 74 | 3 |
| 5 | 3 | 64 | 9 |
| 6 | 3 | 121 | 4 |
| 7 | 3 | 162 | 1 |
| 8 | 3 | 59 | 8 |
| 9 | 3 | 137 | 2 |
| Out | 27 | 823 |
Course rating and slope
| Tee | Yards | Par | Rating / Slope |
|---|---|---|---|
| Black | 823 | 27 | 25.6 / 76 26.9 / 78 (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 Greg Mastriona Hills
GolfCore's library covers The Greg Mastriona Golf Courses at Hyland Hills green by green: 10 putting surfaces traced with 62 elevation contours from USGS 3DEP 1-meter lidar. The steepest measured slope on these greens tilts at 7.8 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. The Greg Mastriona Golf Courses at Hyland Hills is one of more than fourteen 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.
More courses nearby
Approximate straight-line distances from The Greg Mastriona Golf Courses at Hyland Hills. Driving distances and travel times will vary.
- Legacy Ridge Golf Course
Westminster, Colorado
- 18 holes
- Par 72
- Scorecard
- Course map
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- 1.4 mi straight-line
- Greenway Park Golf Course
Broomfield, Colorado
- 9 holes
- Par 27
- Scorecard
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- 2.8 mi straight-line
- Ranch Country Club, The
Westminster, Colorado
- 18 holes
- Par 71
- Scorecard
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- 3.2 mi straight-line
- Indian Tree Golf Course
Arvada, Colorado
- 18 holes
- Par 70
- Scorecard
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- Green maps
- 3.5 mi straight-line
- Walnut Creek Golf Preserve
Westminster, Colorado
- 18 holes
- Par 72
- Scorecard
- Course map
- Green maps
- 4.1 mi straight-line
Staff at Greg Mastriona Hills 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.