Craig Roback
| Date | Course | Tee | Slope | Rating | Score | Equation | Differential |
|---|---|---|---|---|---|---|---|
| Nov. 5, 2025 | Sleepy Hole Golf Course | Yellow | 119 | 67.3 | 94 | (94 - 67.3) x 113 ÷ 119 = | 25.4 |
| Oct. 15, 2025 | Battlefield Golf Club | Gold | 116 | 65.6 | 77 | (77 - 65.6) x 113 ÷ 116 = | 11.1 |
| Oct. 1, 2025 | Virginia Beach National Golf Club | Gold | 115 | 65.9 | 89 | (89 - 65.9) x 113 ÷ 115 = | 22.7 |
| Sept. 10, 2025 | Red Wing Lake Golf Course | Gold | 110 | 66.4 | 82 | (82 - 66.4) x 113 ÷ 110 = | 16.0 |
| Oct. 30, 2024 | Bide-A-Wee Golf Course | Yellow | 115 | 65.3 | 83 | (83 - 65.3) x 113 ÷ 115 = | 17.4 |
| Aug. 28, 2024 | Heron Ridge Golf Course | Gold | 123 | 66.9 | 83 | (83 - 66.9) x 113 ÷ 123 = | 14.8 |
| July 31, 2024 | Sewells Point Golf Course | Sewells Point Golf Course | 110 | 65.1 | 79 | (79 - 65.1) x 113 ÷ 110 = | 14.3 |
| June 12, 2024 | X - Eagle Haven Golf Course | Eagle Haven Golf Course | 112 | 65.0 | 89 | (89 - 65.0) x 113 ÷ 112 = | 24.2 |
| May 29, 2024 | Stumpy Lake Golf Course | Green | 108 | 65.6 | 87 | (87 - 65.6) x 113 ÷ 108 = | 22.4 |
| April 17, 2024 | Red Wing Lake Golf Course | Gold | 110 | 66.4 | 82 | (82 - 66.4) x 113 ÷ 110 = | 16.0 |
| Oct. 11, 2023 | Kempsville Greens Golf Course | Kempsville Greens Golf Course | 112 | 63.8 | 80 | (80 - 63.8) x 113 ÷ 112 = | 16.3 |
| Sept. 6, 2023 | Bide-A-Wee Golf Course | Yellow | 115 | 65.3 | 81 | (81 - 65.3) x 113 ÷ 115 = | 15.4 |
| Aug. 2, 2023 | Heron Ridge Golf Course | Gold | 123 | 66.9 | 84 | (84 - 66.9) x 113 ÷ 123 = | 15.7 |
| June 28, 2023 | Ocean View Golf Course | Black | 111 | 66.0 | 88 | (88 - 66.0) x 113 ÷ 111 = | 22.4 |
Then we use the 4 lowest differentials according to this USGA table:
We add the lowest 4 differentials together, which are
11.1,
14.3,
14.8,
15.4,
and get 55.6.
Then we take that total and get the average differential score 55.6 ÷ 4 = 13.9
Lastly we lop off all numbers past the first decimal point and we get
Then we take that total and get the average differential score 55.6 ÷ 4 = 13.9
Lastly we lop off all numbers past the first decimal point and we get