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Tournaments played by John Yan |
| Date | Name | Old rating | Current rating |
|---|---|---|---|
| 2006-09-30 | Adjustment-Ajustement | 1269 | 1271 |
| 2006-04-22 | Calgary School Team C. C. - Senior High | 1253 | 1269 |
| 2006-03-18 | Calgary Jr./Sr. High School Chess Championship | 1197 | 1253 |
| 2006-01-14 | Sectional | 1005 | 1197 |
| 2005-10-29 | Pumpkin Challenge | 885 | 1005 |
| 2005-03-06 | Calgary Jr./Sr. High School Chess Championship | 0 | 885 |