Aardvark: Joan Rosenthal vs Tony Sim
| Tournament played | Round | Joan Rosenthal | Tony Sim | |
| 1 | 31.08.1993 2nd World Championships (USA) | 8 | 300 | 350 |
| 2 | 31.08.1993 2nd World Championships (USA) | 14 | 300 | 350 |
| 3 | 31.10.1995 3rd World Championships (GBR) | 14 | 306 | 300 |
| 4 | 06.11.1999 5th World Championships (AUS) | 5 | 319 | 534 |
| Head-to-head after 4 games | 1 | 3 | ||
| Average score | 306.25 | 383.5 | ||