Roy Groenewegen
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Hengelo op U14 | 08/06/2001 | 0 | Netherlands |
| NED-ch U14 op | 08/07/2000 | 0 | Netherlands |
| NED U12 op | ??/??/1999 | 0 | Netherlands |
| Hengelo U12 op | ??/??/1998 | 0 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| C50 | King's pawn game | 7 games |
| C44 | King's pawn game | 1 games |
| B40 | Sicilian defence | 1 games |
| B22 | Sicilian, Alapin's variation (2.c3) | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C50 | King's pawn game | 3 games |
| C45 | Scotch game | 3 games |
| C24 | Bishop's opening, Berlin defence | 1 games |
| C41 | Philidor's defence | 1 games |


Netherlands