Iris Stillman
| Date | Course | Tee | Slope | Rating | Score | Equation | Differential |
|---|---|---|---|---|---|---|---|
| Nov. 5, 2025 | Sleepy Hole Golf Course | Red | 111 | 64.9 | 99 | (99 - 64.9) x 113 ÷ 111 = | 34.7 |
| Oct. 15, 2025 | Battlefield Golf Club | Red | 112 | 63.5 | 96 | (96 - 63.5) x 113 ÷ 112 = | 32.8 |
| Oct. 1, 2025 | Virginia Beach National Golf Club | Red | 111 | 63.4 | 98 | (98 - 63.4) x 113 ÷ 111 = | 35.2 |
| Sept. 17, 2025 | Bide-A-Wee Golf Course | Red | 111 | 63.9 | 94 | (94 - 63.9) x 113 ÷ 111 = | 30.6 |
| Sept. 10, 2025 | Red Wing Lake Golf Course | Green | 102 | 62.8 | 92 | (92 - 62.8) x 113 ÷ 102 = | 32.3 |
| Sept. 3, 2025 | Cypress Creek Golfers' Club | Red | 117 | 64.9 | 98 | (98 - 64.9) x 113 ÷ 117 = | 32.0 |
| Aug. 27, 2025 | Stumpy Lake Golf Course | Red | 99 | 64.2 | 95 | (95 - 64.2) x 113 ÷ 99 = | 35.2 |
| Aug. 20, 2025 | Ocean View Golf Course | Gold | 105 | 63.7 | 90 | (90 - 63.7) x 113 ÷ 105 = | 28.3 |
| Aug. 13, 2025 | Bide-A-Wee Golf Course | Red | 111 | 63.9 | 96 | (96 - 63.9) x 113 ÷ 111 = | 32.7 |
| Aug. 6, 2025 | X - Eagle Haven Golf Course | Gold | 118 | 66.0 | 96 | (96 - 66.0) x 113 ÷ 118 = | 28.7 |
| July 9, 2025 | Bide-A-Wee Golf Course | Red | 111 | 63.9 | 95 | (95 - 63.9) x 113 ÷ 111 = | 31.7 |
| June 25, 2025 | Suffolk Golf Course | Red | 111 | 64.0 | 97 | (97 - 64.0) x 113 ÷ 111 = | 33.6 |
| June 11, 2025 | Ocean View Golf Course | Gold | 105 | 63.7 | 93 | (93 - 63.7) x 113 ÷ 105 = | 31.5 |
| June 4, 2025 | Cypress Creek Golfers' Club | Red | 117 | 64.9 | 94 | (94 - 64.9) x 113 ÷ 117 = | 28.1 |
| May 14, 2025 | Stumpy Lake Golf Course | Red | 99 | 64.2 | 98 | (98 - 64.2) x 113 ÷ 99 = | 38.6 |
| April 23, 2025 | Red Wing Lake Golf Course | Green | 102 | 62.8 | 91 | (91 - 62.8) x 113 ÷ 102 = | 31.2 |
| April 16, 2025 | Battlefield Golf Club | Red | 112 | 63.5 | 88 | (88 - 63.5) x 113 ÷ 112 = | 24.7 |
| April 9, 2025 | Honey Bee Golf Club | Green | 114 | 64.3 | 97 | (97 - 64.3) x 113 ÷ 114 = | 32.4 |
| April 2, 2025 | Sleepy Hole Golf Course | Red | 111 | 64.9 | 96 | (96 - 64.9) x 113 ÷ 111 = | 31.7 |
| March 26, 2025 | Sewells Point Golf Course | Red | 108 | 63.0 | 98 | (98 - 63.0) x 113 ÷ 108 = | 36.6 |
Then we use the 8 lowest differentials according to this USGA table:
We add the lowest 8 differentials together, which are
24.7,
28.1,
28.3,
28.7,
30.6,
31.2,
31.5,
31.7,
and get 234.79999999999998.
Then we take that total and get the average differential score 234.79999999999998 ÷ 8 = 29.349999999999998
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 234.79999999999998 ÷ 8 = 29.349999999999998
Lastly we lop off all numbers past the first decimal point and we get