Ishibashi, Masashi
Current rating: 1483
Record: 9-6 (GP) / 7-13 (professional)
| Grand Prix Shizuoka 2003 (MRD limited) | starting rating: 1415 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 117 | Kuze, Kazuyoshi (1531) | Won 2-0 | +201435 |
| 3sealed | 48 | Mayumi, Ryuuta (1537) | Lost 1-2 | -161419 |
| 4sealed | 174 | Kawabata, Yukito (1520) | Won 2-1 | +201439 |
| 5sealed | 94 | Itou, Masayoshi (1542) | Won 2-1 | +201459 |
| 6sealed | 38 | Sasagawa, Tomohide (1615) | Lost 1-2 | -151444 |
| 7sealed | 93 | Ohige, Tatsuya (1502) | Won 2-1 | +191463 |
| 8sealed | 67 | Terada, Atsushi (1608) | Won 2-1 | +201483 |
| top | average opponent: 1550record: 5-2 | new rating: 1483 | ||
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1404 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 122 | Seki, Kazuhiko (1501) | Won 2-1 | +201424 |
| 3sealed | 86 | Yamada, Akira (1525) | Won 2-1 | +201444 |
| 4sealed | 24 | Yamadaya, Kohei (1706) | Lost 0-2 | -141430 |
| 5sealed | 57 | Watanabe, Hiroto (1588) | Lost 0-2 | -151415 |
| top | average opponent: 1580record: 2-2 | new rating: 1415 | ||
| Grand Prix Shizuoka 2001 (ODY limited) | starting rating: 1397 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 37 | Suzuki, Masatsuna (1500) | Won 2-1 | +201417 |
| 3sealed | 45 | Arai, Kenichiro (1534) | Lost 0-2 | -161401 |
| 4sealed | 122 | Kawasumi, Yoshinori (1466) | Won 2-0 | +191420 |
| 5sealed | 63 | Igarashi, Takayuki (1518) | Lost 1-2 | -161404 |
| top | average opponent: 1505record: 2-2 | new rating: 1404 | ||
| 1998 World Championship (mixed) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 80 | Gilpin, Steven (1464) | Lost 0-0 | -191481 |
| 3draft | 57 | Swietlik, Grzegorz (1482) | Lost 0-0 | -181463 |
| 4draft | 82 | Kirk, S. Ryan (1464) | Won 0-0 | +181481 |
| 5draft | 35 | Dickinson, Matthew (1501) | Lost 0-0 | -171464 |
| 6draft | 55 | Matsuo, Goro (1481) | Lost 0-0 | -181446 |
| 7draft | 92 | Maioli, Douglas (1470) | Won 0-0 | +181464 |
| 8standard | 71 | Lauer, Erik (1545) | Lost 0-0 | -161448 |
| 9standard | 86 | Morbidelli, Simone (1468) | Won 0-0 | +181466 |
| 10standard | 69 | Ogilbee, Brian (1483) | Lost 0-0 | -171449 |
| 11standard | 82 | Starak, Yaro (1464) | Lost 0-0 | -181431 |
| 12standard | 86 | Martins, Eduardo (1445) | Won 0-0 | +181449 |
| 13standard | 76 | Stockdale, Leif (1468) | Lost 0-0 | -181431 |
| 14standard | 81 | Haberli, Jurg (1449) | Lost 0-0 | -171414 |
| 15block | 85 | Tang, Autrijus (1434) | Lost 0-0 | -181396 |
| 16block | 91 | Pratama, Arvan (1399) | Won 0-0 | +181414 |
| 17block | 84 | Karaszewski, Pawel (1433) | Lost 0-0 | -171397 |
| 18block | 87 | Gallion, Daniel (1397) | Lost 0-0 | -181379 |
| 19block | 89 | Olpiner, Eviatar (1378) | Won 0-0 | +181397 |
| 20block | 82 | Bocock, David (1413) | Lost 0-0 | -181379 |
| 21block | 82 | Alfar, Georgina (1394) | Won 0-0 | +181397 |
| top | average opponent: 1452record: 7-13 | new rating: 1397 | ||