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Tournaments played by Jonathan Santos |
| Date | Name | Old rating | Current rating |
|---|---|---|---|
| 2009-03-07 | Ontario Team Championship (K-12) | 655 | 719 |
| 2005-04-02 | York Region Optimist Chess Challenge | 706 | 655 |
| 2004-04-25 | Regular Tournament | 628 | 706 |
| 2004-04-04 | Regular Tournament | 646 | 628 |
| 2004-04-03 | Regular Tournament | 630 | 646 |
| 2004-04-06 | Regular Tournament | 614 | 630 |
| 2004-04-02 | Regular Tournament | 593 | 614 |
| 2004-03-27 | York Region Optimist Chess Challenge | 622 | 593 |
| 2004-02-15 | Regular Tournament | 600 | 622 |
| 2004-02-01 | Regular Tournament | 636 | 600 |
| 2004-02-06 | Regular Tournament | 574 | 636 |
| 2004-02-07 | Regular Tournament | 0 | 574 |