| Mark Oosthuizen Chicago District Golf Association | USGA Handicap Index 3.9 (LHI 3.9) as of 2026-10-20 | |
|---|---|---|
| MM/YY | Score | Type | CR/Slope | Diff | PCC | ESR | ||
|---|---|---|---|---|---|---|---|---|
| 10/26 | 59 | A | 57.8/86 | 1.6 | ||||
| 10/26 | 78 | A | 69.2/116 | 8.6 | ||||
| 9/26 | 73 | A | 70.8/132 | 1.9 | ||||
| 9/26 | 76 | A | 69.8/122 | 5.7 | ||||
| 8/26 | 75 | A | 69.8/112 | 5.2 | ||||
| 8/26 | 82 | A | 71/123 | 10.1 | ||||
| 8/26 | 75 | A | 71.6/130 | 3 | ||||
| 8/26 | 81 | A | 70.1/124 | 9 | ||||
| 8/26 | 78 | A | 69.2/116 | 8.6 | ||||
| 7/26 | 82 | A | 69.2/116 | 12.5 | ||||
| 6/26 | 75 | A | 69.2/116 | 5.7 | ||||
| 6/26 | 80 | A | 71.5/130 | 7.4 | ||||
| 6/26 | 77 | A | 68.2/115 | 8.6 | ||||
| 6/26 | 39 | N | 34.4/123 | 4.2 | ||||
| 6/26 | 77 | A | 71/128 | 5.3 | ||||
| 5/26 | 82 | H | 68.8/123 | 12.1 | ||||
| 5/26 | 41 | N | 34.4/123 | 5.6 | ||||
| 5/26 | 76 | A | 70.6/133 | 4.6 | ||||
| 4/26 | 83 | A | 70.6/135 | 11.2 | ||||
| 4/26 | 76 | A | 71/137 | 4.1 | ||||
| Score Types (H - Home, A - Away, C - Competition, P - Penalty, N - Combined 9H, E - Exceptional) | ||||||||
| Playing Conditions Calculation (PCC) is applied in the calculation of a score differential if the course or weather conditions on a day of play significantly impacted players’ performances. | ||||||||
| Exceptional Score Reduction (ESR) is applied when a score differential is at least 7.0 strokes better then the players Handicap Index at the time the round was recorded, resulting in a -1 for each of the most recent 20 score differentials. If the score is 10.0 strokes better, a -2 ESR is applied to the most recent 20 score differentials. | ||||||||
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