Ong, Kok Seng
Current rating: 1866 (#950)
Record: 85-56 (GP) / 30-27 (professional)
- 2000
- 2001
- 2002
- 2003
- 2004
- 2005
- 2006
- 2007
- 2008
- 2009
- 2010
- 2011
- 2013
- 2014
| Grand Prix Kuala Lumpur 2014 (THS limited) | starting rating: 1725 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 58 | Tan, Ian Keng Huat (1598) | Won 2-0 | +151740 |
| 2sealed | 40 | Koh, Jin-Rui (1518) | Won 2-0 | +141754 |
| 3sealed | 78 | Chandra, Edy (1494) | Won 2-0 | +141768 |
| 4sealed | 20 | Yasooka, Shota (2124) | Lost 1-2 | -121756 |
| 5sealed | 181 | Chong, Kin Leong (1712) | Won 2-0 | +171773 |
| 6sealed | 122 | Kong, Chong Teng (1841) | Won 2-0 | +191792 |
| 7sealed | 55 | Azhar, Hazeril Ezme (1574) | Won 2-0 | +141806 |
| 8sealed | 23 | Kamaruddin, Arif B (1660) | Lost 0-2 | -201786 |
| 9sealed | 40 | Tada, Mitsuhiro (1474) | Won 2-1 | +121798 |
| 10draft | 28 | Wee, Pang Ming (1688) | Won 2-0 | +161814 |
| 11draft | 52 | Leong, Ding Yuan (1859) | Won 2-1 | +191833 |
| 12draft | 10 | Yamamoto, Kentaro (2098) | Won 2-1 | +231856 |
| 13draft | 4 | Chong, Hon Qui (1654) | Won 2-0 | +141870 |
| 14draft | 31 | Heng, Chye Hwee (1802) | Won 2-0 | +171887 |
| 15draft | 3 | Kuptimitr, Krissapas (1747) | Lost 1-2 | -211866 |
| top | average opponent: 1723record: 12-3 | new rating: 1866 | ||
| Grand Prix Bangkok 2013 (DGM limited) | starting rating: 1756 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 244 | Tavarayuth, Chaichalerm (1510) | Lost 0-2 | -221734 |
| 2sealed | 253 | Jongmailuck, Kan (1448) | Won 2-0 | +131747 |
| 3sealed | 179 | Shafaff, Azfa (1500) | Lost 1-2 | -221725 |
| top | average opponent: 1486record: 1-2 | new rating: 1725 | ||
| Grand Prix Singapore 2013 (RTR limited) | starting rating: 1779 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 114 | Indrakesuma, Taufik (1694) | Won 2-0 | +161795 |
| 2sealed | 187 | Kanchanawaleekul, Worrawit (1535) | Lost 1-2 | -221773 |
| 3sealed | 158 | Low, Pak Tsung (1495) | Won 2-0 | +131786 |
| 4sealed | 177 | Maikhu, Suripat (1604) | Won 2-0 | +151801 |
| 5sealed | 79 | Loh, Cher Yiing (1608) | Lost 1-2 | -221779 |
| 6sealed | 143 | Goh, Guo Wei (1517) | Lost 0-2 | -231756 |
| top | average opponent: 1575record: 3-3 | new rating: 1756 | ||
| Grand Prix Singapore 2011 (NPH standard) | starting rating: 1766 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 78 | Macasaet, Brian (1518) | Won 2-1 | +141780 |
| 3standard | 72 | Wong, Kenneth (1520) | Won 2-0 | +131793 |
| 4standard | 82 | Lee, Shi Tian (1884) | Lost 1-2 | -161777 |
| 5standard | 117 | Siew, Han Liang (1539) | Lost 0-2 | -221755 |
| 6standard | 123 | Lennon, Scott (1442) | Won 2-0 | +121767 |
| 7standard | 123 | Wachirakaphan, Sittisa (1514) | Won 2-0 | +141781 |
| 8standard | 88 | Ng, Soon Lye (1565) | Lost 1-2 | -221759 |
| 9standard | 90 | Elfgren, Bertil (1878) | Won 2-0 | +201779 |
| top | average opponent: 1607record: 5-3 | new rating: 1779 | ||
| 2010 World Championship (mixed) | starting rating: 1838 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 30 | Vieren, Peter (1856) | Lost 1-2 | -181820 |
| 2standard | 112 | Nitter, Eivind (1872) | Lost 1-2 | -171803 |
| 3standard | 168 | Subcharoen, Jakguy (1709) | Won 2-0 | +161819 |
| 4standard | 97 | Chorny, Oleg (1486) | Won 2-0 | +121831 |
| 5standard | 91 | Rus, Tine (1661) | Won 2-0 | +151846 |
| 6standard | 69 | Soewanda, Benny (1639) | Lost 0-2 | -211825 |
| 7draft | 30 | Nahodil, Petr (1673) | Won 2-0 | +151840 |
| 8draft | 39 | Eason, Anthony (1633) | Lost 0-2 | -221818 |
| 9draft | 66 | Ganz, Andreas (1731) | Won 2-1 | +171835 |
| 10draft | 128 | Kuo, Tzu-Ching (1890) | Won 2-1 | +191854 |
| 11draft | 150 | Iyanaga, Junya (1894) | Lost 1-2 | -181836 |
| 12draft | 66 | Nettles, Logan (1546) | Won 2-0 | +131849 |
| 13extended | 62 | Aintrazi, Ali (1871) | Lost 0-2 | -181831 |
| 14extended | 68 | Rodriguez Lopez, Juan Jose (1562) | Lost 0-2 | -221809 |
| 15extended | 76 | Yukuhiro, Ken (1749) | Lost 0-2 | -191790 |
| 16extended | 96 | Lu, Chao (1498) | Lost 1-2 | -241766 |
| top | average opponent: 1704record: 7-9 | new rating: 1766 | ||
| Grand Prix Kuala Lumpur 2010 (WWK standard) | starting rating: 1894 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 21 | Zainuddin, Zulkarnain (1499) | Won 2-1 | +111905 |
| 3standard | 48 | Zhu, Liang (1500) | Lost 0-2 | -251880 |
| 4standard | 142 | Yong, Wy Howe (1521) | Won 2-1 | +121892 |
| 5standard | 102 | Boonsiri, Toon (1508) | Lost 0-2 | -251867 |
| 6standard | 101 | Soh, Kee Kiat (1519) | Won 2-0 | +121879 |
| 7standard | 59 | Marr, Mat (1839) | Won 2-0 | +171896 |
| 8standard | 42 | Beley, Ronnie Paul (1572) | Won 2-1 | +131909 |
| 9standard | 23 | Wong, Qin Jin (1559) | Lost 1-2 | -241885 |
| 10standard | 51 | Seah, Danny (1621) | Won 2-0 | +131898 |
| 11standard | 39 | Shee, Dexter (1527) | Lost 1-2 | -251873 |
| 12standard | 45 | Wong, James Ling Guan (1549) | Lost 0-2 | -231850 |
| 13standard | 47 | Ch'ng, Jo (1479) | Won 2-0 | +111861 |
| 14standard | 42 | Chia, Bing Hong (1542) | Lost 0-2 | -231838 |
| top | average opponent: 1557record: 7-6 | new rating: 1838 | ||
| Grand Prix Bangkok 2009 (M10 limited) | starting rating: 1824 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 71 | Popitukgul, Sutipong (1539) | Won 2-0 | +131837 |
| 5sealed | 33 | Alinat, Alain (1835) | Won 2-0 | +181855 |
| 6sealed | 5 | Iyanaga, Junya (1942) | Lost 0-2 | -171838 |
| 7sealed | 25 | Jantaramalai, Mana (1542) | Won 2-1 | +131851 |
| 8sealed | 26 | Edwards, Rudy (1706) | Lost 1-2 | -211830 |
| 9draft | 5 | Lau, Zhao Zhi (1639) | Won 2-0 | +151845 |
| 10draft | 45 | Mihara, Makihito (1868) | Won 2-1 | +181863 |
| 11draft | 29 | Lerdthammatavee, Pheer (1604) | Won 2-1 | +141877 |
| 12draft | 19 | Tanahashi, Masayasu (1951) | Won 2-1 | +191896 |
| 13draft | 42 | Huang, Hao-Shan (1687) | Won 2-1 | +141910 |
| 14draft | 15 | Juza, Martin (2011) | Lost 1-2 | -161894 |
| top | average opponent: 1757record: 8-3 | new rating: 1894 | ||
| Grand Prix Singapore 2009 (extended) | starting rating: 1852 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 75 | Gaffud, Nathaniel (1627) | Won 2-0 | +141866 |
| 3extended | 8 | Yang, Joshua (1826) | Lost 0-2 | -191847 |
| 4extended | 78 | Pepper, Patrick (1535) | Lost 1-2 | -231824 |
| top | average opponent: 1662record: 1-2 | new rating: 1824 | ||
| Pro Tour Kuala Lumpur 2008 (MOR draft) | starting rating: 1892 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 98 | Sanguinetti, James (1599) | Won 2-0 | +131905 |
| 2draft | 79 | Bernabe, Julio (1443) | Won 2-1 | +101915 |
| 3draft | 31 | Takahashi, Yuta (1926) | Lost 0-0 | -171898 |
| 4draft | 55 | Cape, Phil (1682) | Lost 0-2 | -221876 |
| 5draft | 144 | Pagola, Jerome (1551) | Lost 0-2 | -241852 |
| top | average opponent: 1640record: 2-3 | new rating: 1852 | ||
| Grand Prix Bangkok 2007 (LRW limited) | starting rating: 1762 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 45 | Suwannoi, Weerawat (1517) | Won 2-0 | +141776 |
| 4sealed | 6 | Zhou, Yujian (1747) | Won 2-0 | +171793 |
| 5sealed | 25 | Edel, Willy (1752) | Won 2-1 | +181811 |
| 6sealed | 8 | Eng, Sam Ching Seng (1496) | Won 2-0 | +121823 |
| 7sealed | 1 | Morita, Masahiko (2082) | Lost 0-2 | -131810 |
| 8sealed | 10 | Wong, Lucas (1631) | Won 2-0 | +141824 |
| 9draft | 11 | Hiranyasiri, Pongsiri (1572) | Won 2-1 | +141838 |
| 10draft | 7 | Ishikawa, Ren (1866) | Won 2-1 | +181856 |
| 11draft | 6 | Chaisuthamporn, Sirichai (1645) | Won 2-1 | +151871 |
| 12draft | 15 | Iyanaga, Junya (1908) | Won 2-0 | +181889 |
| 13draft | 11 | Choo, Yong Han (1727) | ID | 01889 |
| 14draft | 25 | Morita, Masahiko (2103) | ID | 01889 |
| Qdraft | Iyanaga, Junya (1911) | Won 2-1 | +191908 | |
| Sdraft | Kurihara, Shingou (2059) | Lost 1-2 | -161892 | |
| top | average opponent: 1787record: 10-2-2 | new rating: 1892 | ||
| Grand Prix Singapore 2007 (extended) | starting rating: 1771 | |||
| round | table | opponent (rating) | result | Δrating |
| 3extended | 17 | Li, Cheuk Yin (1570) | Won 2-1 | +141785 |
| 4extended | 27 | Kong, Chong Teng (1621) | Won 2-1 | +151800 |
| 5extended | 10 | Levy, Raphael (2176) | Lost 0-2 | -111789 |
| 6extended | 29 | Soh, Eng Bin (1537) | Won 2-0 | +131802 |
| 7extended | 23 | Feng, Hao (1537) | Lost 0-2 | -231779 |
| 8extended | 38 | Hirosawa, Yuuta (1832) | Lost 0-2 | -171762 |
| top | average opponent: 1712record: 3-3 | new rating: 1762 | ||
| 2006 World Championship (mixed) | starting rating: 1734 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 96 | Hoaen, Rich (2125) | Lost 0-2 | -111723 |
| 2standard | 162 | Gregoir, Christophe (1708) | Won 2-1 | +181741 |
| 3standard | 126 | Moreno, William (1551) | Lost 0-2 | -211720 |
| 4standard | 150 | Rubin, Benjamin (1933) | Lost 1-2 | -151705 |
| 5standard | 131 | Laycock, Kerel (1442) | Won 2-1 | +141719 |
| 6standard | 134 | Braymore, Nathon (1582) | Won 2-1 | +151734 |
| 7draft | 71 | Bandou, Junichirou (1711) | Won 2-1 | +181752 |
| 8draft | 129 | Lundquist, Ben (1630) | Lost 0-2 | -201732 |
| 9draft | 87 | van Medevoort, Robert (1615) | Lost 0-2 | -211711 |
| 10draft | 156 | Marosan, Dragan (1510) | Won 2-1 | +151726 |
| 11draft | 77 | Madriz, Ricardo (1519) | Won 2-0 | +141740 |
| 12draft | 66 | McGregor, Duncan (1713) | Lost 1-2 | -181722 |
| 13extended | 94 | Horecki, Marcin (1533) | Won 2-0 | +141736 |
| 14extended | 56 | Budde, Kai (1866) | Won 2-0 | +211757 |
| 15extended | 53 | Wiegersma, Jelger (2093) | Lost 1-2 | -121745 |
| 16extended | 79 | Yasooka, Shota (1964) | Won 2-1 | +211766 |
| 17extended | 57 | Warmenhoven, Ruud (1887) | Won 2-1 | +211787 |
| 18extended | 48 | Godinez Estrada, Gerardo (1889) | Lost 0-2 | -161771 |
| top | average opponent: 1737record: 10-8 | new rating: 1771 | ||
| Grand Prix Singapore 2005 (extended) | starting rating: 1702 | |||
| round | table | opponent (rating) | result | Δrating |
| 4extended | 31 | Jen, Chien-Ming (1646) | Won 2-0 | +171719 |
| 5extended | 2 | Sirilertvorakul, Veerapat (1547) | Won 2-0 | +151734 |
| 6extended | 10 | Phang, Kok Fai (1543) | Lost 1-2 | -221712 |
| 7extended | 11 | Oks, Oliver (1554) | Lost 0-2 | -211691 |
| 8extended | 51 | Pek, Cheng Wee (1633) | Won 2-0 | +171708 |
| 9extended | 19 | Takeshita, Toru (1606) | Won 2-0 | +161724 |
| 10extended | 12 | Yamada, Tsutomu (1690) | Lost 1-2 | -181706 |
| 11extended | 24 | Lin, Milton Jian Xiong (1631) | Won 2-0 | +161722 |
| 12extended | 14 | Phang, Kok Fai (1559) | Won 2-1 | +161738 |
| 13extended | 11 | Yasooka, Shota (1713) | Lost 0-2 | -191719 |
| 14extended | 15 | Chang, Yu Jen (1576) | Won 2-0 | +151734 |
| top | average opponent: 1609record: 7-4 | new rating: 1734 | ||
| Grand Prix Kuala Lumpur 2004 (5DN standard) | starting rating: 1693 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 12 | Goh, Johnson (1538) | Won 2-0 | +151708 |
| 4standard | 38 | Fujita, Tsuyoshi (1790) | Lost 0-2 | -161692 |
| 5standard | 47 | Lee, Jason Lay Boon (1589) | Lost 1-2 | -201672 |
| 6standard | 54 | Foo, Hee How (1505) | Won 2-1 | +151687 |
| 7standard | 42 | Ng, Kevin (1516) | Won 2-0 | +151702 |
| top | average opponent: 1588record: 3-2 | new rating: 1702 | ||
| Grand Prix Hong Kong 2004 (DST limited) | starting rating: 1663 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 6 | Chan, Siu Wing (1594) | Won 2-0 | +171680 |
| 5sealed | 19 | Wong, Nicholas Jonathan (1611) | Won 0-0 | +171697 |
| 6sealed | 7 | Morita, Masahiko (2037) | Won 2-0 | +241721 |
| 7sealed | 1 | Schroder, Alexander (1691) | Lost 1-2 | -191702 |
| 8sealed | 12 | Gao, Zhen Xing (1558) | Won 2-1 | +161718 |
| 9draft | 24 | Ishida, Itaru (2022) | Lost 1-2 | -131705 |
| 10draft | 3 | Walls, Gabe (1939) | Lost 1-2 | -141691 |
| 11draft | 5 | Osawa, Takuya (1755) | Lost 1-2 | -171674 |
| 12draft | 21 | Stark, Ben S (2052) | Won 2-1 | +251699 |
| 13draft | 30 | Au Yeung, Hon Ming (1509) | Lost 0-2 | -211678 |
| 14draft | 26 | Gao, Zhen Xing (1540) | Won 2-1 | +151693 |
| top | average opponent: 1755record: 6-5 | new rating: 1693 | ||
| 2003 World Championship (mixed) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 41 | van den Broek, Victor (1794) | Won 2-0 | +231549 |
| 2standard | 125 | Malherbaud, Pierre (2085) | Lost 0-2 | -91540 |
| 3standard | 152 | Gislason, Alvin Orri (1515) | Won 2-0 | +171557 |
| 4standard | 75 | Shvartsman, Alex (1922) | Lost 1-2 | -111546 |
| 5standard | 90 | Balogh, Andras (1681) | Won 2-1 | +201566 |
| 6standard | 66 | Fries, Stefan (1664) | Won 2-1 | +201586 |
| 7rochester | 69 | Budde, Kai (1922) | Lost 1-2 | -121574 |
| 8rochester | 23 | Castro, Rodrigo Cesar (1645) | Won 2-1 | +191593 |
| 9rochester | 38 | Law, Albertus Hui Chin (1907) | Won 2-0 | +241617 |
| 10rochester | 17 | Barbero, Jose (1932) | Won 2-0 | +231640 |
| 11rochester | 40 | Humpherys, David (1917) | Lost 0-2 | -131627 |
| 12rochester | 24 | Schneider, Justin (1917) | Won 2-1 | +231650 |
| 13extended | 17 | Chapela, Gustavo (1721) | Won 2-0 | +201670 |
| 14extended | 125 | Barclay, Bradley (1683) | Lost 1-2 | -181652 |
| 15extended | 78 | Finkel, Jon (2022) | Lost 1-2 | -121640 |
| 16extended | 81 | Meraghni, Farid (1734) | Won 2-0 | +201660 |
| 17extended | 49 | Sonne, Jonathan (1788) | Lost 0-2 | -161644 |
| 18extended | 33 | Motta, Pedro (1700) | Won 2-0 | +191663 |
| top | average opponent: 1808record: 11-7 | new rating: 1663 | ||
| Grand Prix Singapore 2003 (LGN limited) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 16 | Lim, Tzer Chern (1553) | Won 2-0 | +181580 |
| 4sealed | 25 | Wong, Samson (1540) | Lost 1-2 | -191561 |
| 5sealed | 39 | Talim, Gary (1706) | Lost 0-2 | -151546 |
| 6sealed | 69 | Zhu, Benjamin Zhiwei (1466) | Lost 0-2 | -201526 |
| top | average opponent: 1566record: 1-3 | new rating: 1526 | ||
| Grand Prix Kuala Lumpur 2002 (TOR limited) | starting rating: 1547 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 35 | Dong, Gan Yao (1536) | Won 2-0 | +181565 |
| 4sealed | 22 | Ng, Soon Lye (1558) | Won 2-0 | +181583 |
| 5sealed | 3 | Camangon, Gerald (1323) | Won 2-1 | +131596 |
| 6sealed | 5 | Au Yong, Wai Kin (1602) | Won 2-0 | +191615 |
| 7sealed | 3 | Zhou, Yujian (1686) | Lost 0-2 | -171598 |
| 8draft | 11 | Yang, Zheng Yan (1495) | Lost 1-2 | -201578 |
| 9draft | 25 | Tham, Hanshen (1527) | Lost 1-2 | -191559 |
| 10draft | 23 | Yamada, Tsutomu (1587) | Won 2-0 | +191578 |
| 11draft | 23 | Ang, Junyang (1569) | Won 2-0 | +171595 |
| 12draft | 18 | Wee, Pang Ming (1771) | Lost 1-2 | -141581 |
| 13draft | 18 | Tham, Tishen (1548) | Lost 0-2 | -191562 |
| top | average opponent: 1564record: 6-5 | new rating: 1562 | ||
| Grand Prix Singapore 2001 (Invasion block) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 4block | 33 | Tan, Allen Boon Hor (1536) | Won 2-0 | +191522 |
| 5block | 12 | Chua, Richie (1536) | Lost 0-2 | -181504 |
| 6block | 28 | Mok, Bernard (1518) | Won 2-1 | +181522 |
| 7block | 13 | Leong, Felix (1550) | Lost 1-2 | -171505 |
| 8block | 31 | Kageyama, Tarou (1603) | Lost 0-2 | -161489 |
| 9block | 27 | Jirapongtrakul, Boonchai (1602) | Won 1-0 | +201509 |
| 10block | 21 | Chang, Chih-Hsiang (1569) | Won 2-0 | +191528 |
| 11block | 17 | Tong, King Yim Kingston (1626) | Won 2-1 | +191547 |
| 12block | 11 | Chua, David (1557) | Won 2-0 | +191566 |
| 13block | 6 | Chua, Chang (1552) | Lost 1-2 | -191547 |
| top | average opponent: 1565record: 6-4 | new rating: 1547 | ||
| Grand Prix Singapore 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 58 | Lim, Jimmy Chun Long (1500) | Won 2-0 | +181518 |
| 2extended | 26 | Soh, Heng Huat Rowan (1518) | Lost 0-2 | -181500 |
| 3extended | 37 | Ng, Koon Ming (1516) | Won 2-0 | +181518 |
| 4extended | 58 | Khoo, Wei Ren (1506) | Won 2-1 | +181536 |
| 5extended | 36 | Wang, Sim Loong (1583) | Won 2-1 | +191555 |
| 6extended | 35 | Gooi, Chih Hong (1538) | Won 2-1 | +181573 |
| 7extended | 13 | Hew, Jun-Wei (1535) | Lost 1-2 | -191554 |
| 8extended | 26 | Fujita, Tsuyoshi (1844) | Lost 1-2 | -131541 |
| 9extended | 28 | Pang, Kelvin (1548) | Lost 0-2 | -181523 |
| 10extended | 29 | Teh, Soon Leong (1485) | Lost 0-2 | -181505 |
| 11extended | 31 | Yang, Zhi Xiang (1470) | Lost 1-2 | -191486 |
| 13extended | 29 | Wang, Ming Chee (1442) | Won 2-0 | +171503 |
| top | average opponent: 1540record: 6-6 | new rating: 1503 | ||