de Sandro, Constantin
Current rating: 1641
Record: 20-12
| Regional Championships Toronto 2023 Cycle 4 (pioneer) | starting rating: 1631 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 12 | Fisher, Owen (1466) | Won 1-0 | +151646 |
| 2pioneer | 65 | Goud, Michael (1718) | Won 2-0 | +201666 |
| 3pioneer | 7 | Wasson, John (1666) | Won 2-1 | +181684 |
| 4pioneer | 4 | Mathews, Gabriel (1562) | Lost 1-2 | -211663 |
| 5pioneer | 22 | Warkentin, Nathan (1497) | Won 2-1 | +151678 |
| 6pioneer | 22 | Lebar, James (1556) | Won 2-1 | +161694 |
| 7pioneer | 11 | Burroughs, Kevin (1703) | Lost 1-2 | -181676 |
| 8pioneer | 26 | Thibeau, Markus (1811) | Lost 1-2 | -151661 |
| 9pioneer | 34 | Arsenault-Beaulieu, Emmanuel (1590) | Lost 0-2 | -201641 |
| top | average opponent: 1619record: 5-4 | new rating: 1641 | ||
| Grand Prix Toronto 2019 (modern) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 168 | Lechner, Thomas (1500) | Won 2-1 | +181535 |
| 2modern | 257 | Duncan, Braiden (1502) | Lost 1-2 | -181517 |
| 3modern | 406 | Stoloff, Matthew (1821) | Won 2-0 | +231540 |
| 4modern | 398 | Gilchrist, Ryan (1547) | Won 2-0 | +181558 |
| 5modern | 249 | Wolbers, Andrew (1800) | Lost 0-2 | -141544 |
| 6modern | 195 | Hemsley, Matt (1622) | Won 2-1 | +201564 |
| 7modern | 196 | McClenaghan, David (1656) | Won 2-0 | +191583 |
| 8modern | 175 | Sedore, Norman (1513) | Won 2-0 | +171600 |
| 9modern | 95 | Schwartz, Sam (1571) | Lost 0-2 | -181582 |
| 10modern | 424 | Albanese, Joe (1513) | Won 2-1 | +161598 |
| 11modern | 411 | Kao, Daniel (1538) | Won 2-1 | +171615 |
| 12modern | 383 | Fengler, Michael (1548) | Won 2-1 | +171632 |
| 13modern | 364 | Dienstbier, Eric (1631) | Won 2-0 | +181650 |
| 14modern | 354 | McGrath, Steven (1604) | Lost 0-2 | -191631 |
| 15modern | 382 | McKee, Thomas (1807) | ID | 01631 |
| top | average opponent: 1612record: 10-4-1 | new rating: 1631 | ||
| Grand Prix Quebec City 2013 (GTC standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 125 | Schmidt, Robert (1500) | Won 2-0 | +181518 |
| 2standard | 113 | Dion-Pelletier, Gabriel (1518) | Won 2-0 | +181536 |
| 3standard | 35 | Richer, Mickel (1520) | Lost 0-2 | -181518 |
| 4standard | 135 | Plouffe, Jeremi (1612) | Lost 1-2 | -171501 |
| 5standard | 234 | Gagne, Vincent (1500) | Lost 1-2 | -181483 |
| 6standard | 253 | Meunier, Joel (1480) | Lost 1-2 | -181465 |
| 7standard | 260 | Linscott, Megan (1420) | Won 2-1 | +181483 |
| 8standard | 229 | Renaud, Domynique (1452) | Won 2-0 | +171500 |
| 9standard | 189 | Ranieri, Madison (1474) | Won 2-0 | +171517 |
| top | average opponent: 1497record: 5-4 | new rating: 1517 | ||