Markku Yrjonen
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| FIN-chT2 0304 | 09/??/2003 | 634 |  Finland |
| FIN-chT 9900 I div | ??/??/1999 | 606 | Finland |
| FIN-chT 9900 | ??/??/1999 | 873 | Finland |
| Kouvola-chT | ??/??/1994 | 0 | Finland |
Most Played Openings as White
| ECO | Opening | Games |
| C44 | King's pawn game | 3 games |
| B50 | Sicilian | 1 games |
| E90 | King's Indian, 5.Nf3 | 1 games |
| B01 | Scandinavian (centre counter) defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B08 | Pirc, classical (two knights) system | 1 games |
| A45 | Queen's pawn game | 1 games |
| D74 | Neo-Gruenfeld, 6.cd Nxd5, 7.O-O | 1 games |
| D08 | Queen's Gambit Declined, Albin counter-gambit | 1 games |
