marquez, john
Current rating: 1593
Record: 11-7-1 (GP) / 2-3 (professional)
| Grand Prix Oakland 2004 (DST limited) | starting rating: 1551 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 34 | Grijalua, Daniella (1518) | Won 2-1 | +181569 |
| 3sealed | 44 | Rietzl, Paul (1752) | Lost 1-2 | -151554 |
| 4sealed | 76 | Ferguson, Charles (1558) | Won 2-1 | +181572 |
| 5sealed | 36 | Ravitz, Joshua (1595) | Won 2-1 | +191591 |
| 6sealed | 30 | Taylor, Eric (1687) | Won 2-0 | +191610 |
| 7sealed | 21 | Tran, Phuong (1510) | Won 2-1 | +171627 |
| 8sealed | 11 | Bulthaup, Sean (1660) | ID | 01627 |
| 9draft | 25 | Cohen, Steven (1540) | Lost 0-2 | -201607 |
| 10draft | 13 | Scott-Vargas, Luis (1620) | Won 2-1 | +181625 |
| 11draft | 23 | Stroh, Brian (1541) | Lost 1-2 | -191606 |
| 12draft | 15 | Berkowitz, Jordan (1884) | Lost 1-2 | -131593 |
| 13draft | 26 | Cohen, Steven (1512) | Won 2-1 | +161609 |
| 14draft | 15 | Dunham, Kory (1716) | Lost 1-2 | -161593 |
| top | average opponent: 1623record: 7-5-1 | new rating: 1593 | ||
| Pro Tour Amsterdam 2004 (MRD rochester) | starting rating: 1546 | |||
| round | table | opponent (rating) | result | Δrating |
| 1rochester | 77 | Romao, Carlos (1865) | Lost 1-2 | -121534 |
| 2rochester | 97 | Kato, Kazuki (1934) | Won 2-1 | +241558 |
| 3rochester | 108 | Cuneo, Andrew (1778) | Lost 1-2 | -141544 |
| 4rochester | 95 | Kato, Kazuki (1921) | Lost 0-2 | -111533 |
| 5rochester | 25 | Robertsen, Christian (1555) | Won 2-0 | +181551 |
| top | average opponent: 1810record: 2-3 | new rating: 1551 | ||
| Grand Prix Anaheim 2003 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 8 | Hornak, Paul (1518) | Won 2-0 | +181518 |
| 3extended | 36 | Cordova, Andrew (1492) | Won 2-0 | +181536 |
| 4extended | 37 | Tsang, Terry (1751) | Lost 0-2 | -141522 |
| 5extended | 29 | Frayer, Michael (1570) | Lost 0-2 | -171505 |
| 6extended | 82 | Anderson, Kaare (1669) | Won 2-1 | +211526 |
| 7extended | 37 | Flores, Derek (1515) | Won 2-1 | +171543 |
| 8extended | 31 | Roemer, Ross (1685) | Draw 1-1 | +31546 |
| top | average opponent: 1600record: 4-2-1 | new rating: 1546 | ||