Bob Graham
| Date | Course | Tee | Slope | Rating | Score | Equation | Differential |
|---|---|---|---|---|---|---|---|
| April 14, 2025 | Honey Bee Golf Club | White | 116 | 65.3 | 70 | (70 - 65.3) x 113 ÷ 116 = | 4.6 |
| Nov. 1, 2017 | Virginia Beach National Golf Club | Virginia Beach National Golf Club | 121 | 66.9 | 91 | (91 - 66.9) x 113 ÷ 121 = | 22.5 |
| Oct. 18, 2017 | Cypress Point Country Club | Yellow | 111 | 66.2 | 91 | (91 - 66.2) x 113 ÷ 111 = | 25.2 |
| Aug. 9, 2017 | Heron Ridge Golf Course | Gold | 121 | 67.1 | 86 | (86 - 67.1) x 113 ÷ 121 = | 17.7 |
| July 26, 2017 | Honey Bee Golf Club | Honey Bee Golf Club | 116 | 65.6 | 79 | (79 - 65.6) x 113 ÷ 116 = | 13.1 |
| July 19, 2017 | Virginia Beach National Golf Club | Virginia Beach National Golf Club | 121 | 66.9 | 81 | (81 - 66.9) x 113 ÷ 121 = | 13.2 |
| July 12, 2017 | Cahoon Plantation | Yellow | 120 | 67.5 | 79 | (79 - 67.5) x 113 ÷ 120 = | 10.8 |
| July 5, 2017 | Ocean View Golf Course | Gold | 103 | 63.4 | 75 | (75 - 63.4) x 113 ÷ 103 = | 12.7 |
| June 28, 2017 | Sleepy Hole Golf Course | Sleepy Hole Golf Course | 122 | 66.5 | 81 | (81 - 66.5) x 113 ÷ 122 = | 13.4 |
| June 14, 2017 | Red Wing Lake Golf Course | Red Wing Lake Golf Course | 111 | 66.3 | 79 | (79 - 66.3) x 113 ÷ 111 = | 12.9 |
| May 31, 2017 | Stumpy Lake Golf Course | Gold | 118 | 67.3 | 82 | (82 - 67.3) x 113 ÷ 118 = | 14.1 |
| May 24, 2017 | Nansemond River Golf Course | Gold | 124 | 67.6 | 78 | (78 - 67.6) x 113 ÷ 124 = | 9.5 |
| May 17, 2017 | Heron Ridge Golf Course | Gold | 121 | 67.1 | 85 | (85 - 67.1) x 113 ÷ 121 = | 16.7 |
| May 10, 2017 | Bide-A-Wee Golf Course | Yellow | 110 | 65.5 | 89 | (89 - 65.5) x 113 ÷ 110 = | 24.1 |
| May 3, 2017 | Aeropines Golf Club | Tomcat Course | 115 | 66.2 | 87 | (87 - 66.2) x 113 ÷ 115 = | 20.4 |
| April 19, 2017 | Riverfront Golf Course | Green | 125 | 68.3 | 90 | (90 - 68.3) x 113 ÷ 125 = | 19.6 |
| April 12, 2017 | Sewells Point Golf Club | Sewells Point Golf Club | 110 | 65.1 | 88 | (88 - 65.1) x 113 ÷ 110 = | 23.5 |
| April 5, 2017 | Suffolk Golf Course | Yellow | 112 | 68.1 | 89 | (89 - 68.1) x 113 ÷ 112 = | 21.1 |
| Nov. 2, 2016 | Virginia Beach National Golf Club | Virginia Beach National Golf Club | 121 | 66.9 | 88 | (88 - 66.9) x 113 ÷ 121 = | 19.7 |
| Oct. 26, 2016 | Honey Bee Golf Club | Honey Bee Golf Club | 116 | 65.6 | 81 | (81 - 65.6) x 113 ÷ 116 = | 15.0 |
Then we use the 8 lowest differentials according to this USGA table:
We add the lowest 8 differentials together, which are
4.6,
9.5,
10.8,
12.7,
12.9,
13.1,
13.2,
13.4,
and get 90.2.
Then we take that total and get the average differential score 90.2 ÷ 8 = 11.275
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 90.2 ÷ 8 = 11.275
Lastly we lop off all numbers past the first decimal point and we get