| Tournament | Round | Jeffery Lam | Ivor Zetler |
| 03.10.2020 NSW CHAMPS 2020 (NSW) | 8 | 385 | 337 |
| 30.01.2022 City of Sydney Masters (NSW) | 9 | 322 | 367 |
| 30.01.2022 City of Sydney Masters (NSW) | 16 | 446 | 391 |
| 29.01.2023 CSIM2023 (NSW) | 18 | 351 | 378 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 376 | 368.25 | |
| Spread: | 31 | -31 | |