Arend Los
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Utrecht OKU op-B | 06/04/2004 | 92 | Netherlands |
| Kleve op | 06/01/2000 | 679 | Germany |
| Utrecht OKU I op | 05/??/2000 | 739 | Netherlands |
| Zwolle KPMG op | 03/11/2000 | 1901 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| C29 | Vienna gambit | 2 games |
| B89 | Sicilian, Sozin, 7.Be3 | 2 games |
| A40 | Queen's pawn | 1 games |
| B00 | King's pawn opening | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C02 | French, advance variation | 3 games |
| C29 | Vienna gambit | 2 games |
| D02 | Queen's pawn game | 2 games |
| C12 | French, MacCutcheon variation | 1 games |


Netherlands
Germany