| Tournament | Round | Trevor Tao | Betty Keese |
| 19.06.2010 SA June (SA) | 2 | 362 | 406 |
| 14.08.2010 August (SA) | 3 | 343 | 367 |
| 16.04.2011 SA April (SA) | 5 | 390 | 385 |
| 05.11.2011 Seaford (SA) | 3 | 395 | 332 |
| 16.06.2012 SA June (SA) | 1 | 459 | 341 |
| 15.06.2014 SA June (SA) | 6 | 385 | 276 |
| 11.10.2014 SA October (SA) | 1 | 591 | 306 |
| 15.11.2014 SA November (SA) | 2 | 401 | 351 |
| 20.06.2015 SA June (SA) | 3 | 405 | 309 |
| 25.07.2015 July Pub Tourney (SA) | 6 | 427 | 347 |
| 23.01.2016 4-4-4 Tournament (SA) | 5 | 451 | 366 |
| Head-to-head after 11 games | 9 | 2 | |
| Average score | 419 | 344.18 | |
| Spread: | 823 | -823 | |