| Tournament | Round | Ivor Zetler | Tony Williams |
| 21.07.2013 Winter Masters (NSW) | 17 | 424 | 276 |
| 14.12.2013 Spot Prize December (NSW) | 5 | 455 | 342 |
| 26.01.2015 City of Sydney International Masters (NSW) | 20 | 459 | 292 |
| 13.02.2016 Wollongong Summer (NSW) | 7 | 369 | 288 |
| 30.07.2017 Winter Masters (NSW) | 15 | 387 | 546 |
| 26.01.2019 AUSTRALIA DAY OPEN (NSW) | 7 | 353 | 266 |
| 03.04.2021 OZ CHAMPS (NSW) | 15 | 493 | 304 |
| 18.09.2022 MASTERS and STATE CHALLENGE (VIC) | 18 | 421 | 460 |
| 19.04.2025 National Championship and Plate (SA) | 22 | 396 | 337 |
| 04.04.2026 AUS CHAMPS (ACT) | 3 | 436 | 370 |
| 04.04.2026 AUS CHAMPS (ACT) | 14 | 415 | 356 |
| Head-to-head after 11 games | 9 | 2 | |
| Average score | 418.9 | 348.81 | |
| Spread: | 771 | -771 | |