| Name: | J. Keysper |
| Federation: |  |
| Years: | 1988 - 1988 |
| Total Games: | 4 |
| Wins: | 2 (50 %) |
| Draws: | 0 (0 %) |
| Losses: | 2 (50 %) |
| Score: | 50 % |
| Tournament | Date | Elo Avg. | Country |
| ACCOM op | ??/??/1988 | 304 |  Netherlands |
| ECO | Opening | Games |
| B71 | Sicilian, dragon, Levenfish variation | 1 games |
| ECO | Opening | Games |
| E90 | King's Indian, 5.Nf3 | 1 games |
| C73 | Ruy Lopez, modern Steinitz defence, Richter variation | 1 games |
| C79 | Ruy Lopez, Steinitz defence deferred (Russian defence) | 1 games |
| White | ELO W | Black | ELO B | Result | Moves | ECO | Date | Tournament | View |
| Keysper, J | Wouterson, R | 1-0  |
12 | B71 | 1988 | ACCOM op |
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| Van der Zalm, M | Keysper, J | 0-1 |
25 | E90 | 1988 | ACCOM op |
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| Knoppert, E | 2305 | Keysper, J | 1-0 |
37 | C73 | 1988 | ACCOM op |
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| Carrion Lara, L | Keysper, J | 1-0 |
48 | C79 | 1988 | ACCOM op |
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