Chang, Mark
Current rating: 1672
Record: 20-13-3 (GP) / 9-5 (professional)
| Grand Prix Kuala Lumpur 2006 (DIS limited) | starting rating: 1631 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 52 | Xiao, Dennis (1518) | Lost 1-2 | -201611 |
| 3sealed | 74 | Ho, Jason (1483) | Won 2-0 | +161627 |
| 4sealed | 67 | Eng, Wee Yang (1504) | Draw 1-1 | -31624 |
| 5sealed | 75 | Eng, Boon Tat Elvin (1660) | Won 2-0 | +191643 |
| 6sealed | 49 | Marcus, Heronimo (1532) | Won 2-0 | +161659 |
| 7sealed | 33 | Yeh, Chao Lung (1706) | Won 2-1 | +191678 |
| 8sealed | 19 | Hart, Jacob (1819) | Won 2-0 | +201698 |
| 9draft | 19 | Lin, Milton Jian Xiong (1708) | Lost 1-2 | -171681 |
| 10draft | 26 | Surapanpitak, Chet (1544) | Lost 1-2 | -211660 |
| 11draft | 17 | Chow, Yiu Hung (1573) | Draw 1-1 | -11659 |
| 12draft | 11 | Wong, Weng Sheng (1608) | Won 2-0 | +171676 |
| 13draft | 17 | Chan, Fung Shun (1549) | Won 2-1 | +151691 |
| 14draft | 25 | Chow, Yiu Hung (1595) | Lost 0-2 | -191672 |
| top | average opponent: 1600record: 7-4-2 | new rating: 1672 | ||
| Grand Prix Singapore 2001 (Invasion block) | starting rating: 1676 | |||
| round | table | opponent (rating) | result | Δrating |
| 4block | 13 | Chee, Jia Hui (1554) | Won 2-1 | +161692 |
| 5block | 16 | Hendrick, Paul Jo-el (1572) | Lost 1-2 | -211671 |
| 6block | 33 | Chiang, Kang Nien (1542) | Lost 1-2 | -201651 |
| 7block | 58 | Loh, Chuan Han (1535) | Lost 0-2 | -201631 |
| top | average opponent: 1551record: 1-3 | new rating: 1631 | ||
| Pro Tour Tokyo 2001 (Invasion block) | starting rating: 1600 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 131 | Vollebregt, Joost (1635) | Lost 0-2 | -171583 |
| 2block | 100 | Fujita, Kenichi (1686) | Lost 0-2 | -161567 |
| 3block | 119 | Laguna, Lizbeth (1468) | Won 2-0 | +161583 |
| 4block | 113 | Zografos, Ilias (1556) | Won 2-0 | +171600 |
| 5block | 51 | Ogura, Ryou (1538) | Won 2-1 | +171617 |
| 6block | 62 | Humpherys, David (1853) | Lost 0-2 | -141603 |
| 7block | 86 | Perez Fresnedo, Javier (1501) | Won 2-1 | +161619 |
| 8block | 45 | Douyama, Tsuyoshi (1659) | Won 2-0 | +191638 |
| 9block | 40 | Jonsson, Anton (1649) | Lost 1-2 | -181620 |
| 10block | 46 | Fujino, Kimihiro (1507) | Won 2-1 | +161636 |
| 11block | 34 | Law, Albertus Hui Chin (1709) | Lost 1-2 | -161620 |
| 12block | 41 | Fredembach, Clement (1514) | Won 2-0 | +161636 |
| 13block | 41 | Romero, Ellis (1684) | Won 2-0 | +191655 |
| 14block | 20 | O'Mahoney-Schwartz, Daniel (1828) | Won 2-1 | +211676 |
| top | average opponent: 1628record: 9-5 | new rating: 1676 | ||
| Grand Prix Hiroshima 2001 (INV limited) | starting rating: 1587 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 81 | Kono, Masahide (1554) | Draw 1-1 | 01587 |
| 3sealed | 66 | Noguchi, Yuji (1537) | Won 2-0 | +171604 |
| 4sealed | 44 | Nakagawa, Yukihiro (1536) | Lost 1-2 | -191585 |
| 5sealed | 88 | Seki, Yoshio (1569) | Lost 0-2 | -191566 |
| 6sealed | 108 | Nakayama, Tetsuji (1499) | Won 2-1 | +171583 |
| 7sealed | 81 | Higuchi, Mitsurei (1518) | Won 2-0 | +171600 |
| top | average opponent: 1535record: 3-2-1 | new rating: 1600 | ||
| Grand Prix Singapore 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 20 | Lim, Tse Yee (1500) | Won 2-0 | +181518 |
| 2extended | 12 | Eng, Boon Tat Elvin (1500) | Won 2-1 | +181536 |
| 3extended | 12 | Leong, Ding Yuan (1487) | Lost 1-2 | -191517 |
| 4extended | 66 | Koh, Shihao (1519) | Won 2-0 | +181535 |
| 5extended | 21 | Chieng, Warton (1501) | Won 2-1 | +171552 |
| 6extended | 18 | Law, Albertus Hui Chin (1610) | Lost 0-2 | -171535 |
| 7extended | 27 | Lie, Suwira (1520) | Won 2-0 | +181553 |
| 8extended | 28 | Yang, Zhi Xiang (1522) | Won 2-1 | +171570 |
| 9extended | 13 | Hong, How Tuan (1542) | Won 2-1 | +181588 |
| 10extended | 9 | Kwan, David Wei Phang (1551) | Won 2-1 | +171605 |
| 11extended | 6 | Epley, Alan (1590) | Lost 0-2 | -181587 |
| 12extended | 12 | Pang, Kelvin (1603) | Lost 1-2 | -181569 |
| 13extended | 14 | Ang, Junyang (1584) | Won 2-0 | +181587 |
| top | average opponent: 1541record: 9-4 | new rating: 1587 | ||