| Tournament | Round | Wayne Willis | Chris Ostrowski |
| 09.04.2007 Australian Championships (NSW) | 6 | 310 | 369 |
| 24.03.2008 Australian Championship (VIC) | 8 | 344 | 393 |
| 29.01.2012 CITY OF SYDNEY MASTERS (NSW) | 10 | 321 | 335 |
| 29.01.2012 CITY OF SYDNEY MASTERS (NSW) | 20 | 275 | 414 |
| Head-to-head after 4 games | 0 | 4 | |
| Average score | 312.5 | 377.75 | |
| Spread: | -261 | 261 | |