Sekiguchi, Takeshi
Current rating: 1563
Record: 8-5-2
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 117 | Satou, Takahisa (1517) | Won 2-0 | +181520 |
| 2sealed | 92 | Sato, Masayuki (1516) | Lost 1-2 | -181502 |
| 3sealed | 215 | Yoshizumi, Tomohiro (1492) | Won 2-1 | +181520 |
| 4sealed | 234 | Mizuno, Nobuyoshi (1538) | Won 2-0 | +181538 |
| 5sealed | 207 | Kamekawa, Masashi (1597) | Won 2-1 | +191557 |
| 6sealed | 84 | Lee, Sung-Bum (1568) | Won 2-1 | +181575 |
| 7sealed | 72 | Kadooka, Toshiyuki (1821) | Won 2-0 | +231598 |
| 8sealed | 152 | Jeong, Hyunwoo (1656) | Lost 0-2 | -171581 |
| 9sealed | 232 | Akamatsu, Yoshiki (1590) | Lost 1-2 | -181563 |
| average opponent: 1588record: 6-3 | new rating: 1563 | |||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 464 | Hasegawa, Kazunari (1500) | Draw 1-1 | 01500 |
| 2modern | 419 | Tsujii, Takahito (1497) | Won 2-1 | +181518 |
| 3modern | 272 | Ohashi, Gaku (1523) | Lost 0-2 | -181500 |
| 4modern | 478 | Shioe, Tsugukuni (1498) | Won 2-0 | +181518 |
| 5modern | 334 | Yamashita, Hiroki (1630) | Draw 1-1 | +21520 |
| 6modern | 434 | Abe, Tooru (1491) | Lost 1-2 | -181502 |
| average opponent: 1523record: 2-2-2 | new rating: 1502 | |||