Hardest Golf Courses in Ontario
The hardest golf courses in Ontario, ranked by slope rating from verified scorecards. Compare slope, course rating, par and yardage.
Ranked from the 17 Ontario courses that currently have verified scorecard data. Course ratings follow the World Handicap System.
| # | Course | City | Slope | Par | Yards | Access |
|---|---|---|---|---|---|---|
| 1 | Warkworth Golf Club | Warkworth | 139 | 73 | 6335 | public |
| 2 | Cataraqui Golf & Country Club | Kingston | 137 | 75 | 6459 | public |
| 3 | Roseland Golf and Curling Club | Windsor | 137 | 72 | 6540 | public |
| 4 | Napanee Golf & Country Club | Napanee | 136 | 72 | 5877 | public |
| 5 | Essex Golf and Country Club | LaSalle | 135 | 77 | 6401 | public |
| 6 | Garrison Golf Course | Kingston | 134 | 72 | 6497 | public |
| 7 | Ambassador Golf Club | Windsor | 133 | 71 | 6637 | public |
| 8 | Perth Golf Course | Perth | 133 | 71 | 5825 | public |
| 9 | Sault Country Club | Sault Ste. Marie | 131 | 71 | 6333 | public |
| 10 | Scenic Woods Golf Club | Hamilton | 131 | 72 | 6437 | public |
| 11 | Picton Golf & Country Club | Picton | 130 | 73 | 6179 | public |
| 12 | Blue Heron Golf Club | Fallbrook | 129 | 71 | 6026 | public |
| 13 | Poplars Golf Club | Tweed | 126 | 72 | 5737 | public |
| 14 | Mapleview Golf & Country Club | Perth | 125 | 72 | 5695 | public |
| 15 | Iroquois Golf Club | Iroquois | 118 | 72 | 5432 | public |
| 16 | Brockville Highland Golf | Brockville | 114 | 72 | 5814 | public |
| 17 | The Landings Golf Course | Kingston | 103 | 63 | 4164 | public |
Rankings cover the 17 courses with verified scorecard measurements and update automatically as more are added. A province is listed once at least 10 of its courses carry the relevant measurement.