Yoo, Ki-hyun
Current rating: 1601
Record: 21-19-1
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1472 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 699 | Seki, Keita (1664) | Won 2-1 | +221494 |
| 5sealed | 708 | Terada, Shuuhei (1646) | Lost 1-2 | -151479 |
| 6sealed | 723 | Ishii, Taisuke (1774) | Won 2-0 | +231502 |
| 7sealed | 705 | Chesney, Collin (1572) | Won 2-0 | +191521 |
| 8sealed | 851 | Nakayama, Yuuki (1514) | Won 2-0 | +181539 |
| 9sealed | 850 | Nakazono, Kouya (1588) | Won 2-0 | +191558 |
| 10sealed | 30 | Nakai, Sunao (1548) | Won 2-0 | +181576 |
| 11sealed | 9 | Takeishi, Kouji (1869) | Won 2-0 | +231599 |
| 12draft | 9 | Suzuki, Akiyoshi (1681) | Won 2-0 | +191618 |
| 13draft | 124 | Oiso, Masashi (2089) | Lost 0-2 | -101608 |
| 14draft | 101 | Matsumoto, Yuki2978 (1814) | Lost 1-2 | -141594 |
| 15draft | 20 | Hirayama, Daisuke (1816) | Lost 0-2 | -141580 |
| 17draft | 37 | Kato, Kensuke (1732) | Won 2-1 | +211601 |
| top | average opponent: 1716record: 9-4 | new rating: 1601 | ||
| Grand Prix Taipei 2012 (RTR limited) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 29 | Chang, Kong-Ming (1536) | Lost 1-2 | -181478 |
| 5sealed | 87 | Ku, Teng Ju (1543) | Won 2-1 | +191497 |
| 6sealed | 37 | Jian, Sheng Xiu (1681) | Lost 1-2 | -141483 |
| 7sealed | 128 | Lin, Jer Chin (1535) | Won 2-1 | +191502 |
| 8sealed | 72 | Kitahara, Hiroaki (1881) | Lost 1-2 | -121490 |
| 9sealed | 92 | Nakashima, Hajime (1499) | Lost 0-2 | -181472 |
| top | average opponent: 1613record: 2-4 | new rating: 1472 | ||
| Grand Prix Oakland 2010 (extended) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 93 | Freeman, Brendon (1432) | Lost 0-2 | -201491 |
| 2extended | 289 | Preston, Zach (1602) | Won 2-0 | +201511 |
| 3extended | 163 | Fernandes, Martin (1501) | Lost 1-2 | -181493 |
| 4extended | 314 | Fukushima, Shungo (1472) | Won 2-0 | +181511 |
| 5extended | 205 | Roa, Bastian (1481) | Lost 0-2 | -191492 |
| 6extended | 251 | Yam, Philip (1739) | Lost 1-2 | -131479 |
| 7extended | 222 | Catterall-Davis, Merlin (1511) | Lost 0-2 | -181461 |
| 8extended | 176 | Brady, Ben (1427) | Won 2-0 | +181479 |
| 9extended | 136 | Daniels, Jon (1411) | Won 2-0 | +171496 |
| top | average opponent: 1509record: 4-5 | new rating: 1496 | ||
| Grand Prix Taipei 2005 (Kamigawa block) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 51 | Lin, Feng Sheng (1500) | Won 2-1 | +181528 |
| 2block | 21 | Deng, Wen Chin (1518) | Lost 0-2 | -181510 |
| 3block | 41 | Jen, Chien-Ming (1554) | Lost 0-2 | -171493 |
| 4block | 114 | Liu, Denuw (1386) | Won 2-0 | +161509 |
| 5block | 78 | Hsia, Sheng Hsun (1661) | Lost 1-2 | -151494 |
| 6block | 93 | Sung, Cheng Han (1481) | Won 2-1 | +171511 |
| 7block | 86 | Lee, Min Hyuk (1498) | Lost 0-2 | -181493 |
| 8block | 81 | Wu, Reginald (1482) | Won 2-0 | +181511 |
| top | average opponent: 1510record: 4-4 | new rating: 1511 | ||
| Grand Prix Singapore 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4extended | 32 | Komuro, Shuu (1935) | Draw 1-1 | +71507 |
| 5extended | 35 | Lam, chi kwong (1555) | Won 2-0 | +191526 |
| 6extended | 12 | Yap, Jing Yang (1582) | Lost 0-2 | -171509 |
| 7extended | 37 | Kitayama, Masaya (1522) | Lost 0-2 | -171492 |
| 8extended | 66 | Ang, Wei Tiong (1535) | Won 2-1 | +181510 |
| top | average opponent: 1626record: 2-2-1 | new rating: 1510 | ||