| Tournament | Round | Khwanjai Thammaping | Dianne Davis |
| 08.06.2015 Vic Championship (VIC) | 20 | 474 | 428 |
| 09.06.2019 VIC CHAMPIONSHIP (VIC) | 14 | 313 | 406 |
| 12.06.2022 VIC CHAMP 22 (VIC) | 4 | 331 | 425 |
| 10.06.2023 Victorian Champs (VIC) | 10 | 371 | 390 |
| 07.06.2025 40th Anniv Vic Champs (VIC) | 16 | 313 | 364 |
| Head-to-head after 5 games | 1 | 4 | |
| Average score | 360.4 | 402.6 | |
| Spread: | -211 | 211 | |