Woon, Joel
Current rating: 1640
| Grand Prix London 2018 (RIX limited) | starting rating: 1693 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 453 | King, Adam T (1370) | Lost 0-2 | -241669 |
| 2sealed | 470 | Jenny, Valentin (1481) | Lost 1-2 | -211648 |
| 3sealed | 889 | Bratby, Dave (1381) | Won 2-0 | +131661 |
| 4sealed | 740 | Linley-Hill, Alex (1483) | Lost 0-2 | -211640 |
| top | average opponent: 1429record: 1-3 | new rating: 1640 | ||
| Grand Prix London 2016 (KLD limited) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 889 | John, Jack (1500) | Won 2-0 | +171538 |
| 2sealed | 235 | Pike, Michael (1585) | Won 2-0 | +191557 |
| 3sealed | 187 | Lesaege, Clement (1823) | Won 2-1 | +231580 |
| 4sealed | 144 | Nuri, Muhammad (1621) | Won 2-1 | +191599 |
| 5sealed | 103 | Airaksinen, Mikko (1803) | Lost 0-2 | -151584 |
| 6sealed | 230 | Kentesber, Sam (1558) | Won 2-1 | +181602 |
| 7sealed | 69 | Crispo, Emanuele (1632) | Won 2-1 | +181620 |
| 8sealed | 33 | Nunn, Richard (1699) | Won 2-0 | +201640 |
| 9sealed | 34 | Walker, Ben (1741) | Draw 1-1 | +21642 |
| 10draft | 175 | Berger, Meciek (1980) | Won 2-0 | +241666 |
| 11draft | 322 | Molle, Niels (2016) | Lost 0-2 | -121654 |
| 12draft | 331 | Kenyeres, Akos (1826) | Lost 0-2 | -151639 |
| 13draft | 103 | Walker, Ben (1721) | Won 2-1 | +191658 |
| 14draft | 91 | Palmer, Luke (1534) | Won 2-0 | +161674 |
| 15draft | 84 | Sayers, Michael (1733) | Won 2-1 | +191693 |
| top | average opponent: 1718record: 11-3-1 | new rating: 1693 | ||
| Grand Prix London 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 313 | Yearsley, James (1500) | Won 2-1 | +181518 |
| 2sealed | 442 | Theodorou, Vasilis (1535) | Lost 0-2 | -181500 |
| 3sealed | 361 | Grati, Pedro (1612) | Won 2-1 | +201520 |
| 4sealed | 430 | Vorel, Jiri (1655) | Lost 0-2 | -151505 |
| 5sealed | 450 | Hough, Samuel (1437) | Won 2-0 | +171522 |
| 6sealed | 477 | Graba, Bartlomiej (1465) | Won 2-0 | +171539 |
| 7sealed | 391 | Scarponi, Alessandro (1550) | Lost 0-2 | -181521 |
| top | average opponent: 1536record: 4-3 | new rating: 1521 | ||