Williams, Calum
Current rating: 1489
Record: 18-19-1
| Grand Prix Manchester 2016 (SOI standard) | starting rating: 1492 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 119 | Rynn, Kevin (1544) | Won 2-0 | +191511 |
| 4standard | 43 | Niznansky, Milan (1668) | Won 2-1 | +211532 |
| 5standard | 63 | Pruijt, Daan (1967) | Lost 1-2 | -111521 |
| 6standard | 79 | Manuel, Travis (1558) | Lost 1-2 | -171504 |
| 7standard | 192 | Galvez, Sergi (1692) | Lost 0-2 | -151489 |
| top | average opponent: 1686record: 2-3 | new rating: 1489 | ||
| Grand Prix Barcelona 2016 (SOI limited) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 81 | Rucci, Federico (1534) | Lost 0-2 | -181507 |
| 3sealed | 575 | Salvatto, Luis (1823) | Lost 0-2 | -131494 |
| 4sealed | 918 | Avalos, Abel (1482) | Lost 1-2 | -181476 |
| 5sealed | 888 | Roa, Laura (1460) | Won 2-0 | +181494 |
| 6sealed | 766 | Romero Atance, Jose Alberto (1411) | Won 2-1 | +161510 |
| 7sealed | 681 | Strakhov, Alexander (1496) | Lost 0-2 | -181492 |
| top | average opponent: 1534record: 2-4 | new rating: 1492 | ||
| Grand Prix Brussels 2015 (BFZ standard) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 40 | van Velzen, Erwin (1412) | Won 0-0 | +161532 |
| 2standard | 443 | Caramalau, Adrian (1410) | Lost 0-0 | -201512 |
| 3standard | 603 | Koh, Kee Leong (1250) | Won 2-1 | +131525 |
| 4standard | 472 | Desmidt, Lino (1521) | Won 2-1 | +181543 |
| 5standard | 318 | Valcke, Michiel (1504) | Lost 1-2 | -181525 |
| 6standard | 439 | Dier, Oliver (1472) | Won 2-0 | +171542 |
| 7standard | 350 | Smits, Peter (1546) | Lost 1-2 | -181524 |
| 8standard | 340 | Bogolyubov, Dmitry (1623) | Won 2-0 | +191543 |
| 9standard | 271 | Hoonderd, Marco (1496) | Lost 0-2 | -181525 |
| top | average opponent: 1470record: 5-4 | new rating: 1525 | ||
| Grand Prix London 2015 (ORI standard) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 493 | Nuri, Muhd (1534) | Lost 0-2 | -181502 |
| 2standard | 980 | Wang, Jonathan (1428) | Won 2-1 | +171519 |
| 3standard | 889 | Henning, Greig (1500) | Won 2-1 | +181537 |
| 4standard | 834 | Taylor, James (1385) | Lost 1-2 | -211516 |
| 5standard | 960 | Brown, Chris K (1507) | Lost 0-2 | -181498 |
| 6standard | 920 | Rosa, Rui (1420) | Won 2-0 | +161514 |
| 7standard | 625 | Slater, Darren (1516) | Won 2-0 | +181532 |
| 8standard | 585 | Soumet, Arnaud (1719) | Lost 0-2 | -141518 |
| 9standard | 422 | Holmstedt, Rolf (1437) | Draw 1-1 | -21516 |
| top | average opponent: 1494record: 4-4-1 | new rating: 1516 | ||
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1116 | Schafroth, Thomas (1533) | Won 2-1 | +191519 |
| 2sealed | 1199 | Walker, Mark D (1333) | Won 2-1 | +141533 |
| 3sealed | 1102 | Klocker, Elias (1650) | Lost 0-2 | -161517 |
| 4sealed | 1191 | Brom, Thomas (1515) | Won 2-0 | +181535 |
| 5sealed | 1181 | Both, Marco (1549) | Lost 0-2 | -171518 |
| 6sealed | 1261 | Sellers, Jonathan (1551) | Lost 1-2 | -181500 |
| 7sealed | 1229 | Herlitz, Fredrik (1524) | Won 2-0 | +191519 |
| 8sealed | 1159 | Natale, Simone (1526) | Lost 1-2 | -181501 |
| 9sealed | 1143 | Salzburg, Martin (1566) | Won 2-1 | +191520 |
| top | average opponent: 1528record: 5-4 | new rating: 1520 | ||