| Rank | Competitor | Country | Score | IAM level | Competition |
|---|---|---|---|---|---|
| 1 | DAREN DENHOLM | South Africa | 520 (10 decks) | 10 | World Memory Championship 2010 |
| 1 | DAVID BECKER | South Africa | 520 (10 decks) | 10 | World Memory Championship 2002 |
| 1 | TREVOR NELL | South Africa | 520 (10 decks) | 10 | World Memory Championship 2005 |
| 4 | HEIDI PRINGAULT | South Africa | 385 (7.4 decks) | 7 | World Memory Championship 2009 |
| 5 | KATHARINE DENHOLM | South Africa | 312 (6 decks) | 6 | World Memory Championship 2011 |
| 6 | NEVILLE GRIMSHAW | South Africa | 304 (5.85 decks) | 5 | World Memory Championship 1998 |
| 7 | KEVIN HORSLEY | South Africa | 222 (4.27 decks) | 4 | World Memory Championship 1995 |
| 8 | GERRARD FERREIRA | South Africa | 53 (1.02 decks) | 1 | World Memory Championship 2011 |
| 9 | ADITHI NAIDOO | South Africa | 52 (1 decks) | 1 | World Memory Championship 2007 |
| 9 | MICHAEL BROWN | South Africa | 52 (1 decks) | 1 | World Memory Championship 2011 |
| 9 | LAURENS LEERINK | South Africa | 52 (1 decks) | 1 | World Memory Championships 2017 |