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