Sakuma, Takeshi
Current rating: 1481
Record: 5-6-1
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 113 | Shimada, Takashi (1464) | Lost 0-2 | -191501 |
| 2extended | 127 | Katayama, Hidenori (1467) | Lost 1-2 | -191482 |
| 3extended | 161 | Kamei, Toru (1428) | Won 2-0 | +171499 |
| 4extended | 151 | Endo, Kenji (1465) | Draw 1-1 | 01499 |
| 5extended | 150 | Yoshikawa, Hiroshi (1504) | Lost 0-2 | -181481 |
| average opponent: 1466record: 1-3-1 | new rating: 1481 | |||
| Grand Prix Fukuoka 2002 (TOR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 85 | Ishii, Sadao (1500) | Won 2-0 | +181518 |
| 2sealed | 68 | Takakura, Takeshi (1500) | Won 2-0 | +181536 |
| 3sealed | 42 | Watanabe, Masanari (1566) | Won 2-0 | +181554 |
| 4sealed | 14 | Murata, Kouji (1614) | Won 2-0 | +191573 |
| 5sealed | 9 | Nakamura, Satoshi (1625) | Lost 0-2 | -171556 |
| 6sealed | 47 | Matsumura, Takehiko (1531) | Lost 1-2 | -181538 |
| 7sealed | 78 | Okuma, Kenji (1540) | Lost 1-2 | -181520 |
| average opponent: 1554record: 4-3 | new rating: 1520 | |||