Yonaha, Masatomo
Current rating: 1604
| Grand Prix Hiroshima 2006 (CSP limited) | starting rating: 1568 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 66 | Aono, Yoshio (1432) | Lost 0-2 | -211547 |
| 2sealed | 165 | Yashiki, Kouichi (1481) | Lost 0-2 | -191528 |
| 3sealed | 99 | Kurashima, Kazuki (1492) | Won 2-1 | +171545 |
| 4sealed | 98 | Ito, Jun (1546) | Won 2-1 | +181563 |
| 5sealed | 63 | Umeno, Kengo (1652) | Won 2-0 | +201583 |
| 6sealed | 22 | Kawano, Junya (1558) | Won 2-1 | +181601 |
| 7sealed | 14 | Nakamura, Yusuke (1547) | Lost 1-2 | -191582 |
| 8sealed | 67 | Morofuji, Takuma (1824) | Won 2-0 | +221604 |
| top | average opponent: 1566record: 5-3 | new rating: 1604 | ||
| Grand Prix Matsuyama 2005 (BOK limited) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 45 | Yamane, Masahiro (1467) | Won 2-0 | +161574 |
| 2sealed | 1 | Matsuoka, Tomohide (1573) | Won 2-1 | +181592 |
| 3sealed | 7 | Ishikawa, Masayo (1511) | Lost 0-2 | -191573 |
| 4sealed | 79 | Katayose, Shingo (1530) | Draw 1-1 | -11572 |
| 5sealed | 99 | Abe, Ryou (1627) | Lost 1-2 | -171555 |
| 6sealed | 120 | Natsume, Takuya (1497) | Won 2-0 | +171572 |
| 7sealed | 91 | Tanii, Yuusuke (1480) | Won 2-0 | +161588 |
| 8sealed | 66 | Hasegawa, Gaku (1449) | Lost 0-2 | -201568 |
| top | average opponent: 1517record: 4-3-1 | new rating: 1568 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 161 | Nisigahana, Tatunori (1500) | Won 2-0 | +181518 |
| 2standard | 67 | Kabeshita, Yoshito (1518) | Won 2-0 | +181536 |
| 3standard | 82 | Tanaka, Takayuki (1499) | Won 2-1 | +171553 |
| 4standard | 1 | Shibuya, Yuuto (1627) | Won 2-1 | +201573 |
| 5standard | 50 | Kaneko, Yoshiyuki (1496) | Won 2-1 | +161589 |
| 6standard | 14 | Kishi, Tatsunori (1659) | Lost 0-2 | -161573 |
| 7standard | 30 | Miki, Sadayoshi (1535) | Won 2-0 | +171590 |
| 8standard | 37 | Yokoi, Masaki (1614) | Lost 0-2 | -181572 |
| 9standard | 87 | Kaji, Tomohiro (1779) | Won 2-1 | +221594 |
| 10standard | 49 | Seki, Keita (1556) | Lost 0-2 | -191575 |
| 11standard | 33 | Takebayashi, Tomo (1579) | Won 2-0 | +181593 |
| 12standard | 54 | Hosoiri, Yoshihito (1576) | Won 2-1 | +181611 |
| 13standard | 13 | Senba, Kotaro (1634) | Lost 0-2 | -181593 |
| 14standard | 52 | Fujitsuka, Shougo (1647) | Lost 0-2 | -171576 |
| 15standard | 33 | Inoue, Yu (1546) | Lost 0-2 | -181558 |
| top | average opponent: 1584record: 9-6 | new rating: 1558 | ||