| Date | Competitor | Country | Score | IAM level | Competition |
|---|---|---|---|---|---|
| 2013-09-28 | CHAN CHI WA | Hong Kong | 53 | 10 | Hong Kong Open Memory Championship 2013 |
| 2013-03-31 | ROY LAM | Hong Kong | 47 | 9 | Welsh Open Memory Championship 2013 |
| 2010-05-08 | ROY LAM | Hong Kong | 42 | 9 | Welsh Open Memory Championship 2010 |
| 2007-07-14 | LI KAM FUNG | Hong Kong | 22 | 10 | Australian Open Memory Championship 2007 |