Iris Stillman
| Date | Course | Tee | Slope | Rating | Score | Equation | Differential |
|---|---|---|---|---|---|---|---|
| Aug. 19, 2026 | Stumpy Lake Golf Course | Red | 99 | 64.2 | 98 | (98 - 64.2) x 113 ÷ 99 = | 38.6 |
| Aug. 12, 2026 | Kiln Creek Golf Course | Green/Red | 111 | 63.3 | 97 | (97 - 63.3) x 113 ÷ 111 = | 34.3 |
| Aug. 5, 2026 | Cypress Point Country Club | Red | 106 | 65.0 | 98 | (98 - 65.0) x 113 ÷ 106 = | 35.2 |
| July 22, 2026 | Eagle Creek Golf Course | Red | 100 | 63.5 | 90 | (90 - 63.5) x 113 ÷ 100 = | 29.9 |
| July 15, 2026 | Battlefield Golf Club | Red | 112 | 63.5 | 96 | (96 - 63.5) x 113 ÷ 112 = | 32.8 |
| July 1, 2026 | Red Wing Lake Golf Course | Green | 102 | 62.8 | 90 | (90 - 62.8) x 113 ÷ 102 = | 30.1 |
| June 24, 2026 | Ocean View Golf Course | Gold | 105 | 63.7 | 85 | (85 - 63.7) x 113 ÷ 105 = | 22.9 |
| June 17, 2026 | Kempsville Greens Golf Course | Red | 110 | 62.2 | 93 | (93 - 62.2) x 113 ÷ 110 = | 31.6 |
| June 10, 2026 | Cypress Creek Golfers' Club | Red | 117 | 64.9 | 99 | (99 - 64.9) x 113 ÷ 117 = | 32.9 |
| June 3, 2026 | Stumpy Lake Golf Course | Red | 99 | 64.2 | 94 | (94 - 64.2) x 113 ÷ 99 = | 34.0 |
| May 20, 2026 | Chesapeake Golf Club | Green | 117 | 64.5 | 90 | (90 - 64.5) x 113 ÷ 117 = | 24.6 |
| April 22, 2026 | Bide-A-Wee Golf Course | Red | 111 | 63.9 | 94 | (94 - 63.9) x 113 ÷ 111 = | 30.6 |
| April 15, 2026 | Battlefield Golf Club | Red | 112 | 63.5 | 93 | (93 - 63.5) x 113 ÷ 112 = | 29.8 |
| April 8, 2026 | Honey Bee Golf Club | Green | 114 | 64.3 | 94 | (94 - 64.3) x 113 ÷ 114 = | 29.4 |
| April 1, 2026 | Heron Ridge Golf Course | Red | 116 | 65.1 | 99 | (99 - 65.1) x 113 ÷ 116 = | 33.0 |
| March 25, 2026 | Virginia Beach National Golf Club | Red | 111 | 63.4 | 99 | (99 - 63.4) x 113 ÷ 111 = | 36.2 |
| 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 |
Then we use the 8 lowest differentials according to this USGA table:
We add the lowest 8 differentials together, which are
22.9,
24.6,
29.4,
29.8,
29.9,
30.1,
30.6,
30.6,
and get 227.89999999999998.
Then we take that total and get the average differential score 227.89999999999998 ÷ 8 = 28.487499999999997
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 227.89999999999998 ÷ 8 = 28.487499999999997
Lastly we lop off all numbers past the first decimal point and we get