Zheng, Yuanshan
Current rating: 1621
Record: 21-15
| Grand Prix Toronto 2017 (HOU limited) | starting rating: 1597 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 146 | Jennings, Adam (1500) | Won 2-1 | +161613 |
| 2sealed | 28 | Potter, Doug (1894) | Lost 1-2 | -131600 |
| 3sealed | 420 | Graham, John (1500) | Won 2-0 | +161616 |
| 4sealed | 352 | Santos, Josh (1526) | Won 2-1 | +171633 |
| 5sealed | 231 | Zhang, Bolun (1790) | Lost 1-2 | -151618 |
| 6sealed | 314 | Beatty, Robert (1809) | Won 2-0 | +211639 |
| 7sealed | 203 | Gareau, Philippe (1663) | Lost 1-2 | -181621 |
| top | average opponent: 1669record: 4-3 | new rating: 1621 | ||
| Grand Prix Toronto 2013 (THS limited) | starting rating: 1600 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 344 | Grenier, Melissa (1517) | Won 2-1 | +161616 |
| 3sealed | 152 | Menard, Benoit (1535) | Lost 1-2 | -191597 |
| top | average opponent: 1526record: 1-1 | new rating: 1597 | ||
| Grand Prix Detroit 2013 (modern) | starting rating: 1547 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 367 | Powell, Ben (1500) | Won 2-0 | +171564 |
| 2modern | 303 | Hoel, Jeremy (1518) | Won 0-0 | +171581 |
| 3modern | 152 | West, Evan (1530) | Lost 0-2 | -191562 |
| 4modern | 348 | Li, Binghan (1576) | Won 2-0 | +191581 |
| 5modern | 157 | Li, Kai (1529) | Won 2-1 | +171598 |
| 6modern | 111 | Learnihan-Sylvester, Sean (1502) | Won 2-0 | +161614 |
| 7modern | 91 | McDaniel, Chris (1788) | Won 2-1 | +211635 |
| 8modern | 48 | Morelli, Paul (1579) | Lost 0-2 | -191616 |
| 9modern | 97 | Pait, Chris (1716) | Lost 1-2 | -161600 |
| top | average opponent: 1582record: 6-3 | new rating: 1600 | ||
| Grand Prix Quebec City 2013 (GTC standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 41 | Brown, Dylan [USA] (1496) | Won 2-1 | +181518 |
| 3standard | 82 | Grant, Bradley (1535) | Lost 0-2 | -181500 |
| 4standard | 158 | Dubois, Eric (1499) | Won 2-0 | +181518 |
| 5standard | 140 | Wasson, John (1529) | Won 2-0 | +191537 |
| 6standard | 75 | Belanger, Jean (1623) | Won 2-0 | +191556 |
| 7standard | 25 | Shenhar, Shahar (2065) | Lost 0-2 | -91547 |
| 8standard | 103 | Simon, Roland (1535) | Won 2-1 | +171564 |
| 9standard | 30 | de Kler, Tijs (1601) | Lost 0-2 | -171547 |
| top | average opponent: 1610record: 5-3 | new rating: 1547 | ||
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 475 | Chau, Jason 5001 (1500) | Lost 0-2 | -181484 |
| 2sealed | 608 | Elder, Dylan (1482) | Won 2-1 | +181502 |
| 3sealed | 581 | Frac, Mike (1469) | Lost 0-2 | -191483 |
| 4sealed | 554 | Dubreuil, Terry (1482) | Won 2-0 | +181501 |
| 5sealed | 549 | Proano, Gina (1502) | Won 2-1 | +181519 |
| 6sealed | 456 | Weymouth, Mark (1471) | Lost 0-2 | -191500 |
| top | average opponent: 1484record: 3-3 | new rating: 1500 | ||
| Grand Prix Toronto 2006 (DIS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 119 | Hinton, Nicholas (1518) | Lost 0-2 | -181482 |
| 3sealed | 122 | Farrell, Michael K (1502) | Won 2-1 | +191501 |
| 4sealed | 84 | Ragsdale, Adam (1501) | Won 2-1 | +181519 |
| 5sealed | 97 | Gauthier, Martin-Eric (1570) | Lost 0-2 | -171502 |
| top | average opponent: 1523record: 2-2 | new rating: 1502 | ||