Erlings, Mark
Current rating: 1566
| Grand Prix Rotterdam 2009 (CON limited) | starting rating: 1568 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 73 | Nolte, Dennis (1587) | Lost 1-2 | -171551 |
| 2sealed | 173 | Malden, Marion (1515) | Won 2-0 | +171568 |
| 3sealed | 159 | Adami, Glenn (1467) | Won 2-0 | +161584 |
| 4sealed | 147 | Dictus, Mark (1782) | Won 2-0 | +221606 |
| 5sealed | 48 | Lindroos, Jani (1486) | Lost 1-2 | -201586 |
| 6sealed | 153 | Hild, Greg (1521) | Lost 0-2 | -201566 |
| top | average opponent: 1560record: 3-3 | new rating: 1566 | ||
| Grand Prix Brussels 2004 (DST standard) | starting rating: 1545 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 236 | Michaut, Maxime (1655) | Won 2-1 | +201565 |
| 2standard | 30 | Maessen, Toby (1518) | Won 2-0 | +171582 |
| 3standard | 40 | Gentil, Pascal (1592) | Won 2-1 | +191601 |
| 4standard | 47 | Marquilly, Adrien (1555) | Lost 0-2 | -191582 |
| 5standard | 142 | Salvado, Carlos (1538) | Won 2-0 | +171599 |
| 6standard | 41 | Le, Minh (1522) | Lost 1-2 | -191580 |
| 7standard | 77 | Karsten, Frank (1967) | Lost 0-2 | -121568 |
| top | average opponent: 1621record: 4-3 | new rating: 1568 | ||
| Grand Prix Antwerp 2002 (TOR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 29 | Haak, Andre (1500) | Won 2-1 | +181518 |
| 2sealed | 130 | Kleinveld, Leendert Willem (1560) | Lost 0-2 | -171501 |
| 3sealed | 141 | Boudaoud, Hakim (1534) | Won 2-0 | +181519 |
| 4sealed | 115 | Wong, Chi-Ho (1483) | Won 2-0 | +181537 |
| 5sealed | 57 | Salden, Koen (1538) | Won 2-0 | +181555 |
| 6sealed | 62 | Gerson, Steve (1532) | Won 2-0 | +171572 |
| 7sealed | 37 | Nahodil, Petr (1656) | Lost 0-2 | -161556 |
| 8sealed | 70 | Cornelissen, Kamiel (1994) | Lost 1-2 | -111545 |
| top | average opponent: 1599record: 5-3 | new rating: 1545 | ||