Tan, Joseph Boon Kiat
Current rating: 1580
Record: 19-15-2
| Grand Prix Singapore 2018 (DOM standard) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 93 | Takaya, Kensuke (1737) | Won 2-0 | +211578 |
| 3standard | 146 | Allard, Jocelyn (1509) | Won 2-1 | +171595 |
| 4standard | 79 | Loh, Jason (1643) | Lost 0-2 | -171578 |
| 5standard | 55 | Singh, Devsharan (1668) | Lost 0-2 | -171561 |
| 6standard | 216 | So, Alvanson (1506) | Won 2-1 | +171578 |
| 7standard | 90 | Enomoto, Keisuke (1516) | Won 2-0 | +171595 |
| 8standard | 48 | Ohki, Tatsuhiko (1744) | Lost 1-2 | -151580 |
| top | average opponent: 1618record: 4-3 | new rating: 1580 | ||
| Grand Prix Singapore 2017 (XLN limited) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 141 | Burgos Rodriguez, Adrian (1427) | Draw 1-1 | -21520 |
| 2sealed | 123 | Susanto, Reynandi (1469) | Won 2-1 | +171537 |
| 3sealed | 125 | Koh, Kelvin (1502) | Lost 0-2 | -181519 |
| 4sealed | 179 | Lewin, Samuel (1503) | Won 2-0 | +181537 |
| 5sealed | 128 | Wiyono, Alexander (1481) | Won 2-0 | +171554 |
| 6sealed | 83 | Pornpromlikit, Ekapong (1582) | Won 2-0 | +181572 |
| 7sealed | 50 | Weng, Lim (1574) | Won 2-0 | +181590 |
| 8sealed | 31 | Supapipat, Nattawin (1688) | Lost 1-2 | -161574 |
| 9sealed | 58 | Lee, Link (1624) | Lost 0-2 | -171557 |
| top | average opponent: 1539record: 5-3-1 | new rating: 1557 | ||
| Grand Prix Bangkok 2003 (SCG standard) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 77 | Saitakul, Sarun (1500) | Won 2-0 | +171521 |
| 2standard | 37 | Dynefors, David (1569) | Won 2-1 | +191540 |
| 3standard | 24 | Krish, Rondy (1607) | Won 2-1 | +201560 |
| 4standard | 25 | Weerakitti, Supatip (1536) | Lost 0-2 | -191541 |
| 5standard | 26 | Jeong, Hyunwoo (1486) | Lost 0-2 | -191522 |
| 6standard | 59 | Ponlasint, Suntee (1519) | Won 2-1 | +181540 |
| 7standard | 53 | Udomrattanamanee, Suttiporn (1544) | Lost 0-2 | -181522 |
| top | average opponent: 1537record: 4-3 | new rating: 1522 | ||
| Grand Prix Singapore 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 48 | Neo, Jarred Chye Heng (1500) | Won 2-0 | +181518 |
| 2sealed | 11 | Fu, Kenneth Shi Hong (1535) | Won 2-0 | +181536 |
| 3sealed | 26 | Siew, Wei Quan (1590) | Won 2-0 | +191555 |
| 4sealed | 11 | Kristianto, Donny (1485) | Draw 1-1 | -11554 |
| 5sealed | 18 | Gan, Meng San (1508) | Won 2-0 | +171571 |
| 6sealed | 10 | Ng, Wei San Wesley (1578) | Lost 1-2 | -181553 |
| 7sealed | 23 | Lee, Jing Huei (1534) | Won 2-1 | +181571 |
| 8draft | 28 | Jiang, Shun (1675) | Lost 0-2 | -161555 |
| 9draft | 5 | Hwang, Wen Jien (1703) | Lost 0-2 | -151540 |
| 10draft | 7 | Profeta, Francis Robert (1523) | Lost 1-2 | -191521 |
| 11draft | 28 | Joo, Yong Chin (1579) | Won 2-0 | +191540 |
| 12draft | 13 | yeo, leck koon (1504) | Lost 1-2 | -181522 |
| 13draft | 28 | Wong, Samson (1518) | Lost 0-2 | -181504 |
| top | average opponent: 1556record: 6-6-1 | new rating: 1504 | ||