Ganzeveld, Robert
Current rating: 1571
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 313 | Pierson, Zachary (1381) | Lost 0-2 | -201479 |
| 2standard | 379 | Priest, Deborah (1466) | Won 2-0 | +171496 |
| 3standard | 496 | Reardon, Thomas (1772) | Won 2-1 | +231519 |
| 4standard | 374 | Olvera, Bryan (1691) | Won 2-1 | +211540 |
| 5standard | 235 | Williamson, Tim (1539) | Won 2-1 | +181558 |
| 6standard | 151 | Reasor, Ian (1763) | Won 2-0 | +221580 |
| 7standard | 31 | Froehlich, Eric (1994) | Lost 1-2 | -111569 |
| 8standard | 98 | Zabawa, Steve (1482) | Won 2-0 | +171586 |
| 9standard | 1082 | Rozmahel, Mike (1562) | Lost 0-2 | -191567 |
| 10standard | 1132 | Hayden, Josh (1558) | Won 2-0 | +181585 |
| 11standard | 1106 | Horspool, Tyler (1834) | Lost 0-2 | -141571 |
| top | average opponent: 1640record: 7-4 | new rating: 1571 | ||
| Grand Prix Vancouver 2017 (modern) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2438 | Louttit, Orien (1383) | Lost 0-2 | -201497 |
| 2modern | 2505 | Schimmels, Saul (1539) | Won 2-0 | +191516 |
| 3modern | 2377 | Brueseke, Benjamin (1706) | Won 2-1 | +211537 |
| 4modern | 2356 | Zheng, Tommy (1516) | Lost 0-2 | -181519 |
| 5modern | 2510 | Symons, Sean (1419) | Lost 0-2 | -201499 |
| 6modern | 2500 | Ryan, Sean (1482) | Won 2-1 | +181517 |
| 7modern | 2436 | Sonderland, Daniel (1530) | Lost 0-2 | -181499 |
| top | average opponent: 1511record: 3-4 | new rating: 1499 | ||
| Grand Prix Vancouver 2016 (OGW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 482 | Sprangers, Henry (1500) | Won 2-1 | +181518 |
| 2sealed | 182 | Yabuki, Atlin (1517) | Lost 0-2 | -181500 |
| 3sealed | 640 | Green, Jason (1537) | Won 0-0 | +191519 |
| 4sealed | 586 | Woodward, Warren (1653) | Lost 1-2 | -161503 |
| 5sealed | 680 | Sundset, Justin (1462) | Won 2-1 | +171520 |
| 6sealed | 613 | Boulding, Stephanie (1480) | Won 2-1 | +181538 |
| 7sealed | 435 | Guillet, Damien (1464) | Lost 1-2 | -201518 |
| 8sealed | 380 | Dvorshak, Devin (1454) | Lost 1-2 | -191499 |
| 9sealed | 354 | Herr, Scott (1506) | Won 2-0 | +181517 |
| top | average opponent: 1508record: 5-4 | new rating: 1517 | ||