Chiba, Shun
Current rating: 1628
Record: 18-10-1
| Grand Prix Yamagata 2006 (TSP limited) | starting rating: 1640 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 40 | Katahira, Takashi (1500) | Won 2-1 | +151655 |
| 2sealed | 67 | Tomizawa, Youhei (1518) | Lost 1-2 | -201635 |
| 3sealed | 83 | Itoh, Akira (1500) | Won 2-1 | +151650 |
| 4sealed | 81 | Konta, Hidetaka (1517) | Won 2-1 | +161666 |
| 5sealed | 66 | Takahashi, Yuta (1569) | Lost 0-2 | -201646 |
| 6sealed | 77 | Miyajima, Yoshitaka (1609) | Lost 1-2 | -181628 |
| top | average opponent: 1536record: 3-3 | new rating: 1628 | ||
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1609 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 185 | Matsumura, Takehiko (1558) | Won 2-0 | +171626 |
| 3block | 38 | Lin, Milton Jian Xiong (1596) | Lost 1-2 | -191607 |
| 4block | 130 | Yamakage, Dai (1519) | Won 2-0 | +171624 |
| 5block | 68 | Nakada, Masahiro (1555) | Won 2-0 | +171641 |
| 6block | 30 | Imai, Ryouta (1642) | Won 2-1 | +181659 |
| 7block | 18 | Yasooka, Shota (1745) | Lost 0-2 | -171642 |
| 8block | 46 | Aoki, Ryousuke (1518) | Draw 1-1 | -21640 |
| top | average opponent: 1591record: 4-2-1 | new rating: 1640 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1582 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 159 | Ito, Kenta (1523) | Won 2-0 | +171599 |
| 3standard | 49 | Koyama, Kenta (1477) | Lost 1-2 | -201579 |
| 4standard | 182 | Tomita, Shuntarou (1632) | Lost 0-2 | -171562 |
| 5standard | 227 | Ohmura, Satoshi (1499) | Won 2-0 | +171579 |
| 6standard | 194 | Okuyama, Tatsunori (1514) | Won 2-0 | +161595 |
| 7standard | 95 | Shigehara, Toshinori (1507) | Won 2-0 | +171612 |
| 8standard | 116 | Inagaki, Ryou (1561) | Won 2-1 | +171629 |
| 9standard | 63 | Takahama, Norimasa (1525) | Lost 0-2 | -201609 |
| top | average opponent: 1530record: 5-3 | new rating: 1609 | ||
| Grand Prix Sapporo 2002 (Odyssey block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 15 | Ando, Makoto (1481) | Won 2-1 | +181518 |
| 2block | 114 | Kita, Makoto (1560) | Won 2-1 | +181536 |
| 3block | 16 | Sakai, Takanori (1536) | Won 2-0 | +181554 |
| 4block | 14 | Okamoto, Jin (1911) | Won 2-1 | +251579 |
| 5block | 16 | Morita, Masahiko (1781) | Lost 1-2 | -151564 |
| 6block | 37 | Sakai, Naoko (1538) | Lost 1-2 | -181546 |
| 7block | 47 | Kobashi, Motoki (1568) | Won 2-0 | +181564 |
| 8block | 69 | Kudo, Daisuke (1553) | Won 2-0 | +181582 |
| top | average opponent: 1616record: 6-2 | new rating: 1582 | ||