Jan Hein Donner
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Delft exh | ??/??/1982 | 0 | Netherlands |
| NED-ch | ??/??/1982 | 1804 | Netherlands |
| Marbella zt-B | 02/??/1982 | 2378 | Spain |
| Amsterdam | 07/??/1982 | 2268 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| E54 | Nimzo-Indian, 4.e3, Gligoric system with 7...dc | 26 games |
| E41 | Nimzo-Indian, 4.e3 c5 | 25 games |
| E62 | King's Indian, fianchetto variation | 21 games |
| D36 | Queen's Gambit Declined, exchange, positional line, 6.Qc2 | 19 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B09 | Pirc, Austrian attack | 45 games |
| B07 | Pirc defence | 26 games |
| B99 | Sicilian, Najdorf, 7...Be7 main line | 18 games |
| B08 | Pirc, classical (two knights) system | 17 games |


Netherlands
Spain