Ishihama, Yuki
Current rating: 1294
Record: 21-35
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1335 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 247 | Shi, Jinghao (1500) | Lost 1-2 | -151320 |
| 2pioneer | 466 | Tanaka, Yu 6006 (1567) | Lost 0-2 | -131307 |
| 3pioneer | 791 | Toyoda, Tomoyuki (1485) | Lost 0-2 | -151292 |
| 4pioneer | 785 | Kamei, Hidenori (1306) | Won 2-1 | +181310 |
| 5pioneer | 672 | Nakano, Kengo (1396) | Lost 1-2 | -161294 |
| 6pioneer | 637 | Wachigai, Hirotaka (1264) | Won 2-0 | +171311 |
| 7pioneer | 508 | Tomiyama, Shin (1337) | Lost 1-2 | -171294 |
| top | average opponent: 1408record: 2-5 | new rating: 1294 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1397 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 349 | Terachi, Hyuuga (1500) | Lost 1-2 | -161381 |
| 2standard | 447 | Taniguchi, Daigo (1480) | Won 2-1 | +201401 |
| 3standard | 675 | Tsubira, Yuuya (1499) | Lost 1-2 | -171384 |
| 4standard | 661 | Kono, Jun (1470) | Lost 1-2 | -161368 |
| 5standard | 733 | Yamamoto, Takashi (1421) | Lost 0-2 | -171351 |
| 6standard | 700 | Sashida, Tomoro (1490) | Lost 1-2 | -161335 |
| top | average opponent: 1477record: 1-5 | new rating: 1335 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 501 | Tanaka, Takahiro (1396) | Lost 0-2 | -191408 |
| 2sealed | 710 | Nowacka, Paulina (1482) | Won 2-0 | +201428 |
| 3sealed | 691 | Honda, Soma (1587) | Lost 1-2 | -151413 |
| 4sealed | 847 | Neki, Daisuke (1374) | Lost 0-2 | -191394 |
| 5sealed | 920 | Kanbara, Shou (1466) | Won 2-0 | +191413 |
| 6sealed | 802 | Futada, Takahiro (1501) | Lost 0-2 | -161397 |
| top | average opponent: 1468record: 2-4 | new rating: 1397 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1458 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 427 | Watai, Yohei (1518) | Lost 0-2 | -161442 |
| 2standard | 696 | Nakamura, Yuto (1481) | Won 2-1 | +181460 |
| 3standard | 855 | Suzuki, Shoya (1575) | Lost 1-2 | -161444 |
| 4standard | 880 | Shibue, Takahiro (1240) | Won 2-1 | +151459 |
| 5standard | 766 | Nakai, Tomoki (1682) | Lost 0-2 | -141445 |
| 6standard | 725 | Ohtake, Nobuyuki (1462) | Lost 1-2 | -181427 |
| top | average opponent: 1493record: 2-4 | new rating: 1427 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 303 | Abe, Yuuta (1514) | Lost 1-2 | -181500 |
| 2standard | 842 | Fukuyama, Kyohei (1482) | Lost 0-2 | -191481 |
| 3standard | 1013 | Hishida, Tomoya (1198) | Lost 0-2 | -231458 |
| top | average opponent: 1398record: 0-3 | new rating: 1458 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 574 | Tomioka, Teppei (1468) | Lost 0-2 | -191503 |
| 2modern | 720 | Mizuno, Takeshi (1491) | Won 2-0 | +181521 |
| 3modern | 1084 | Kawasaki, Masatsugu (1515) | Won 2-0 | +181539 |
| 4modern | 413 | Lu, Shaoan (1406) | Won 2-0 | +161555 |
| 5modern | 197 | Takahashi, Taro (1569) | Lost 1-2 | -181537 |
| 6modern | 647 | Minami, Yuya (1486) | Lost 0-2 | -191518 |
| top | average opponent: 1489record: 3-3 | new rating: 1518 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 624 | Watanabe, Takashi (1501) | Won 2-0 | +181508 |
| 2standard | 243 | Taura, Ryuji (1668) | Won 2-0 | +211529 |
| 3standard | 519 | Inui, Takashi (1720) | Lost 0-2 | -141515 |
| 4standard | 513 | Juumonji, Ryou (1814) | Won 2-1 | +231538 |
| 5standard | 387 | Minezaki, Yuuta (1524) | Won 2-1 | +181556 |
| 6standard | 213 | Hosokawa, Soichiro (1576) | Lost 1-2 | -181538 |
| 7standard | 472 | Kosuga, Shuhei (1601) | Won 2-1 | +191557 |
| 8standard | 299 | Noine, Kazuhiro (1617) | Lost 1-2 | -171540 |
| 9standard | 472 | Okamura, Takumi (1529) | Lost 1-2 | -181522 |
| top | average opponent: 1617record: 5-4 | new rating: 1522 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 671 | Kawano, Takahiro (1418) | Won 2-0 | +171480 |
| 2sealed | 836 | Makuta, Eiji (1526) | Won 2-1 | +191499 |
| 3sealed | 544 | Nuruki, Hiroaki (1815) | Lost 0-2 | -131486 |
| 4sealed | 820 | Kosaka, Yuki (1511) | Won 2-1 | +191505 |
| 5sealed | 392 | Ishii, Yuki (1484) | Lost 1-2 | -191486 |
| 6sealed | 411 | Terai, Tadayuki (1487) | Won 2-1 | +181504 |
| 7sealed | 426 | Okamura, Tomohiko (1617) | Won 2-1 | +201524 |
| 8sealed | 310 | Oonishi, Ryuuhei (1527) | Lost 0-2 | -181506 |
| 9sealed | 289 | Takahira, Takashi (1608) | Lost 0-2 | -161490 |
| top | average opponent: 1555record: 5-4 | new rating: 1490 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 781 | Mukai, Takashi (1416) | Won 2-1 | +161516 |
| 2standard | 440 | Asano, Jun'ya (1632) | Lost 1-2 | -151501 |
| 3standard | 885 | Kato, Naoya (1392) | Lost 1-2 | -201481 |
| 4standard | 885 | Nakamura, Yuu (1482) | Lost 0-2 | -181463 |
| top | average opponent: 1481record: 1-3 | new rating: 1463 | ||