| Date | Competitor | Country | Score | IAM level | Competition |
|---|---|---|---|---|---|
| 2015-12-16 | SUN HANMING | Hong Kong | 29.29 seconds | 18 | World Memory Championships 2015 |
| 2015-08-22 | SUN HANMING | Hong Kong | 39.1 seconds | 18 | Hong Kong Open Memory Championship 2015 |
| 2012-12-14 | LI KAM FUNG | Hong Kong | 40.16 seconds | 15 | World Memory Championship 2012 |
| 2011-12-07 | LI KAM FUNG | Hong Kong | 50.24 seconds | 15 | World Memory Championship 2011 |
| 2011-09-10 | LI KAM FUNG | Hong Kong | 69 seconds | 15 | Australian Open Memory Championship 2011 |
| 2008-09-27 | LEE TAI YIU | Hong Kong | 97 seconds | 9 | Australian Open Memory Championship 2008 |
| 2007-08-31 | LEUNG KA CHUN | Hong Kong | 107.68 seconds | 8 | World Memory Championship 2007 |
| 2005-08-13 | LEUNG KA CHUN | Hong Kong | 111.9 seconds | 8 | World Memory Championship 2005 |