| Rank | Competitor | Country | Score | IAM level | Competition |
|---|---|---|---|---|---|
| 1 | TREVOR NELL | South Africa | 66.2 seconds | 11 | World Memory Championship 2005 |
| 2 | DAREN DENHOLM | South Africa | 80.53 seconds | 10 | World Memory Championship 2010 |
| 3 | NEVILLE GRIMSHAW | South Africa | 97.78 seconds | 9 | World Memory Championship 1999 |
| 4 | KEVIN HORSLEY | South Africa | 160 seconds | 7 | World Memory Championship 1999 |
| 5 | DAVID BECKER | South Africa | 188.51 seconds | 6 | MSO Memory Championship 2002 |
| 6 | HEIDI PRINGAULT | South Africa | 258.19 seconds | 5 | World Memory Championship 2009 |
| 7 | ADITHI NAIDOO | South Africa | 30 cards | 3 | World Memory Championship 2007 |
| 8 | KATHARINE DENHOLM | South Africa | 25 cards | 2 | World Memory Championship 2011 |
| 9 | GERRARD FERREIRA | South Africa | 12 cards | 1 | World Memory Championship 2011 |
| 10 | MICHAEL BROWN | South Africa | 7 cards | World Memory Championship 2011 | |
| 10 | LAURENS LEERINK | South Africa | 7 cards | World Memory Championships 2017 |