Dennis Castello
| Date | Course | Tee | Slope | Rating | Score | Equation | Differential |
|---|---|---|---|---|---|---|---|
| Nov. 5, 2025 | Sleepy Hole Golf Course | Yellow | 119 | 67.3 | 89 | (89 - 67.3) x 113 ÷ 119 = | 20.6 |
| Oct. 15, 2025 | Battlefield Golf Club | Gold | 116 | 65.6 | 88 | (88 - 65.6) x 113 ÷ 116 = | 21.8 |
| Oct. 1, 2025 | Virginia Beach National Golf Club | Gold | 115 | 65.9 | 88 | (88 - 65.9) x 113 ÷ 115 = | 21.7 |
| Sept. 10, 2025 | Red Wing Lake Golf Course | Gold | 110 | 66.4 | 84 | (84 - 66.4) x 113 ÷ 110 = | 18.1 |
| Sept. 3, 2025 | Cypress Creek Golfers' Club | Gold | 119 | 66.3 | 89 | (89 - 66.3) x 113 ÷ 119 = | 21.6 |
| Aug. 27, 2025 | Stumpy Lake Golf Course | Green | 108 | 65.6 | 81 | (81 - 65.6) x 113 ÷ 108 = | 16.1 |
| Aug. 13, 2025 | Bide-A-Wee Golf Course | Yellow | 115 | 65.3 | 92 | (92 - 65.3) x 113 ÷ 115 = | 26.2 |
| Aug. 6, 2025 | X - Eagle Haven Golf Course | White | 123 | 68.7 | 94 | (94 - 68.7) x 113 ÷ 123 = | 23.2 |
| July 16, 2025 | X - Eagle Haven Golf Course | White | 123 | 68.7 | 93 | (93 - 68.7) x 113 ÷ 123 = | 22.3 |
| July 9, 2025 | Bide-A-Wee Golf Course | Yellow | 115 | 65.3 | 86 | (86 - 65.3) x 113 ÷ 115 = | 20.3 |
| June 25, 2025 | Suffolk Golf Course | Green | 113 | 65.6 | 84 | (84 - 65.6) x 113 ÷ 113 = | 18.4 |
| June 11, 2025 | Ocean View Golf Course | Black | 111 | 66.0 | 86 | (86 - 66.0) x 113 ÷ 111 = | 20.4 |
| June 4, 2025 | Cypress Creek Golfers' Club | Gold | 119 | 66.3 | 89 | (89 - 66.3) x 113 ÷ 119 = | 21.6 |
| May 14, 2025 | Stumpy Lake Golf Course | Green | 108 | 65.6 | 79 | (79 - 65.6) x 113 ÷ 108 = | 14.0 |
| April 23, 2025 | Red Wing Lake Golf Course | Gold | 110 | 66.4 | 87 | (87 - 66.4) x 113 ÷ 110 = | 21.2 |
| April 16, 2025 | Battlefield Golf Club | Gold | 116 | 65.6 | 93 | (93 - 65.6) x 113 ÷ 116 = | 26.7 |
| April 9, 2025 | Honey Bee Golf Club | White | 116 | 65.3 | 92 | (92 - 65.3) x 113 ÷ 116 = | 26.0 |
| April 2, 2025 | Sleepy Hole Golf Course | Yellow | 119 | 67.3 | 88 | (88 - 67.3) x 113 ÷ 119 = | 19.7 |
Then we use the 6 lowest differentials according to this USGA table:
We add the lowest 6 differentials together, which are
14.0,
16.1,
18.1,
18.4,
19.7,
20.3,
and get 106.6.
Then we take that total and get the average differential score 106.6 ÷ 6 = 17.766666666666666
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 106.6 ÷ 6 = 17.766666666666666
Lastly we lop off all numbers past the first decimal point and we get