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Tournaments played by Bob Du |
| Date | Name | Old rating | Current rating |
|---|---|---|---|
| 2010-05-24 | 64th Ontario Open Championship - Under 1600 | 1262 | 1260 |
| 2010-06-13 | Regular | 1264 | 1262 |
| 2010-06-06 | Regular | 1236 | 1264 |
| 2010-05-30 | Regular | 1251 | 1236 |
| 2010-05-16 | Regular | 1197 | 1251 |
| 2010-05-09 | Regular | 1176 | 1197 |
| 2010-05-02 | regular | 1206 | 1176 |
| 2010-04-25 | Regular | 1237 | 1206 |
| 2010-04-18 | regular | 1201 | 1237 |
| 2010-04-11 | regular | 1216 | 1201 |
| 2010-03-28 | regular | 1154 | 1216 |
| 2010-03-21 | regular March 16-21 | 1172 | 1154 |
| 2010-03-15 | REGULAR March 14-15 | 1154 | 1172 |
| 2010-02-28 | Regular | 1094 | 1154 |
| 2010-02-21 | regular | 1058 | 1094 |
| 2010-02-14 | Regular | 1075 | 1058 |
| 2010-02-07 | Regular | 1071 | 1075 |
| 2010-01-31 | Regular | 1023 | 1071 |
| 2010-01-24 | REGULAR | 1040 | 1023 |
| 2010-01-17 | Regular | 1036 | 1040 |
| 2010-01-10 | Regular Tournament | 1022 | 1036 |
| 2009-12-20 | REGULAR | 990 | 1022 |
| 2009-12-05 | 2009 Winter Super Chess Challenge | 936 | 990 |
| 2009-11-22 | REGULAR | 917 | 936 |
| 2009-11-15 | REGULAR | 906 | 917 |
| 2009-11-08 | REGULAR | 880 | 906 |
| 2009-10-25 | REGULAR | 880 | 880 |
| 2009-10-18 | REGULAR | 853 | 880 |
| 2009-09-27 | REGULAR | 799 | 853 |
| 2009-09-20 | REGULAR | 709 | 799 |
| 2009-09-13 | REGULAR | 709 | 709 |
| 2009-06-14 | regular | 675 | 709 |
| 2009-03-07 | TCEI 2009 First March Training Tournament | 603 | 675 |
| 2009-01-31 | TCEI 2009 January Training Tournament | 583 | 603 |
| 2009-01-31 | TCEI 2009 January Training Tournament | 566 | 583 |
| 2009-01-31 | TCEI 2009 January Training Tournament | 0 | 566 |