Alexander Jongsma
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Jersey Major op | 02/16/2003 | 324 | |
| The Hague AEGON | ??/??/1997 | 728 | Netherlands |
| NED-chT 9697 | ??/??/1996 | 1213 | Netherlands |
| The Hague AEGON | 04/??/1996 | 1104 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| A00 | Polish (Sokolsky) opening | 18 games |
| E61 | King's Indian defence, 3.Nc3 | 6 games |
| A04 | Reti opening | 4 games |
| C26 | Vienna, Falkbeer variation | 4 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B29 | Sicilian, Nimzovich-Rubinstein variation | 13 games |
| B27 | Sicilian defence | 8 games |
| B33 | Sicilian defence | 7 games |
| A54 | Old Indian, Ukrainian variation | 7 games |
Netherlands
FIDE ID:

