| | |
| All games with provisionals |
| XVII St. Petersburg Cup. 1/8 (21-28.09.02)
|
| Alexandrov Victor (2263) - Diachkov Sergey | lost| - | |
| Alexandrov Victor (2263) - Diachkov Sergey | lost| - | |
| Rating = (1547*10 + 4526 + 400*(0 - 2)) / (10 + 2) G=10 P=0 | 1547 |
| 11 Russian Champ First League. Nizhny-Novgorod (2-8.11.2002)
|
| Metreveli Irina (2186) - Diachkov Sergey | draw| - | |
| Vostryakov Sergey (2118) - Diachkov Sergey | lost| - | |
| Myasoedov Yevgeni (1845) - Diachkov Sergey | lost| - | |
| Vodolazsky Konstantin (1961) - Diachkov Sergey | draw| - | |
| Mikryukov Mikhail (1963) - Diachkov Sergey | draw| - | |
| Sokolova Anastasia (1956) - Diachkov Sergey | lost| - | |
| Sirategian Karen (2208) - Diachkov Sergey | lost| - | |
| Berezin Roman (1777) - Diachkov Sergey | won| - | |
| Diachkov Sergey - Lokshtanova Anna (1835) | won| - | |
| Epifanov Dmitry (1986) - Diachkov Sergey | lost| - | |
| Rating = (1547*10 + 16223 + 400*(0 - 5)) / (10 + 8) G=10 P=0 | 1547 |
| XVII St. Petersburg Cup. 1/4 (5-12.10.02)
|
| Smirnov Dmitry (0) - Diachkov Sergey | lost| - | |
| Diachkov Sergey - Maltsev Andrey (1843) | won| - | |
| All games with provisionals |
| XVII St. Petersburg Cup. 1/2 and Small Cup. (26.10-7.12.02)
|
| Diachkov Sergey - Mshagsky Konstantin (1582) | won| - | |
| Diachkov Sergey - Balabhai Viktor (1982) | won| +21 | |
| Diachkov Sergey - Gerasimov Ilya (1785) | won| - | |
| Diachkov Sergey - Bushkovsky Liudvik (1762) | won| +11 | |
| Rating = (1547*10 + 3744 + 400*(2 - 0)) / (10 + 2) G=10 P=0 | 1547 |
| 12 Russian Championship. First League. Elektrostal (6-11.11.2003)
|
| Taiblin Yuri (2150) - Diachkov Sergey | won| +27 | |
| Semyonov Vladimir (2157) - Diachkov Sergey | lost| -5 | |
| Zubashenko Ivan (1827) - Diachkov Sergey | draw| -2 | |
| Balabhai Viktor (1908) - Diachkov Sergey | lost| -14 | |
| Diachkov Sergey - Lupin Aleksandr (0) | draw| - | |
| Diachkov Sergey - Pushkaryov Dmitry (1918) | won| - | |
| Durandin Kirill (2046) - Diachkov Sergey | lost| -9 | |
| Diachkov Sergey - Saranchin Alexander (2000) | won| +22 | |
| Diachkov Sergey - Golosov Victor (2281) | won| +29 | |
| Metreveli Irina (2189) - Diachkov Sergey | lost| -4 | |
| Diachkov Sergey - Skuridin Alexey (2234) | draw| +12 | |
| 1873 - 1929 |