Kobayashi, Souma
Current rating: 1437
| Grand Prix Kobe 2017 (modern) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 455 | Kashima, Akihiro (1690) | Lost 0-2 | -141450 |
| 2modern | 838 | Fujioka, Kenta (1407) | Won 2-0 | +181468 |
| 3modern | 954 | Saeki, Tadatoshi (1602) | Lost 0-2 | -161452 |
| 4modern | 1196 | Mizutani, Yosuke (1646) | Lost 0-2 | -151437 |
| 5modern | 1101 | Arai, Ikki (1283) | Won 2-1 | +161453 |
| 6modern | 1125 | Kiyonaga, Sho (1578) | Lost 1-2 | -161437 |
| top | average opponent: 1534record: 2-4 | new rating: 1437 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 274 | Ide, Syun (1428) | Won 2-0 | +171499 |
| 2legacy | 508 | Satou, Ryota (1580) | Won 2-1 | +191518 |
| 3legacy | 431 | Aihara, Shogaku (1525) | Won 2-1 | +181536 |
| 4legacy | 243 | Matsuda, Kenji (1518) | Lost 1-2 | -181518 |
| 5legacy | 434 | Kawai, Yusuke (1512) | Lost 1-2 | -181500 |
| 6legacy | 414 | Kobayashi, Atsumu (1582) | Lost 1-2 | -171483 |
| 7legacy | 698 | Sugiyama, Takanori (1479) | Lost 0-2 | -181465 |
| 8legacy | 742 | Matuoka, Akira (1424) | Won 2-0 | +181483 |
| 9legacy | 668 | Arai, Makoto (1462) | Lost 0-2 | -191464 |
| top | average opponent: 1501record: 4-5 | new rating: 1464 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 132 | Tawa, Atsushi (1462) | Won 2-0 | +171517 |
| 2modern | 224 | Nakamura, Taiki (1482) | Won 2-1 | +181535 |
| 3modern | 202 | Anzai, Yuusuke (1578) | Lost 0-2 | -181517 |
| 4modern | 221 | Woo, Chien Wei (1518) | Lost 0-2 | -181499 |
| 5modern | 349 | Sato, Yuki (1517) | Lost 1-2 | -171482 |
| top | average opponent: 1511record: 2-3 | new rating: 1482 | ||