| Clue | Source | Date |
|---|---|---|
| Scoring system based on total strokes | USA Today | 10 Jun 2019 |
| Scoring system based on total strokes | ||
| Popular golf scoring system | USA Today | 02 Aug 2018 |
| Popular golf scoring system | ||
| Golf scoring system based on total strokes | ||
| Golf scoring system based on total strokes |