John Raymond Markus
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| 57th Groningen Open 2019 | 12/21/2019 | 2250 | Netherlands |
| 54th Groningen Open 2016 | 12/21/2016 | 2396 | Netherlands |
| HSG Open 2015 | 06/19/2015 | 2283 | Netherlands |
| 2nd Science Park Open A | 07/14/2012 | 2290 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| A46 | Queen's pawn game | 11 games |
| D03 | Torre attack (Tartakower variation) | 9 games |
| A47 | Queen's Indian defence | 8 games |
| D05 | Queen's pawn game | 8 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C78 | Ruy Lopez, 5.O-O | 26 games |
| A57 | Benko gambit | 12 games |
| C47 | Four knights, Scotch variation | 7 games |
| A30 | English, symmetrical variation | 6 games |
Netherlands
Male
FIDE ID:

