Kodama, Yuu
Current rating: 1406
Record: 24-33-1
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1443 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 262 | Yoshida, Mitsutaka (943) | Lost 0-2 | -261417 |
| 2pioneer | 559 | Nakagawa, Ayato (1461) | Lost 0-2 | -171400 |
| 3pioneer | 756 | Yoshimatsu, Shuto (1411) | Lost 0-2 | -181382 |
| 4pioneer | 789 | Hirose, Daichi (1309) | Won 2-1 | +161398 |
| 5pioneer | 704 | Toyoda, Yorito (1478) | Lost 0-2 | -161382 |
| 6pioneer | 628 | Jin, Shen (1448) | Won 2-0 | +191401 |
| 7pioneer | 520 | Yanase, Ryo (1465) | Lost 1-2 | -171384 |
| 8pioneer | 423 | Kanbara, Hokuto (1564) | Won 2-1 | +221406 |
| top | average opponent: 1385record: 3-5 | new rating: 1406 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1414 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 442 | Kasuga, Ryou (1631) | Won 2-1 | +221436 |
| 2standard | 607 | Uchikawa, Fumitaka (1523) | Won 2-1 | +201456 |
| 3standard | 604 | Kumagai, Riku (1906) | Won 2-1 | +261482 |
| 4standard | 197 | Kojima, Tatuya (1777) | Lost 1-2 | -131469 |
| 5standard | 458 | Dungan, Conrad (1679) | Lost 1-2 | -141455 |
| 6standard | 605 | Seet, Danny (1677) | Won 2-1 | +221477 |
| 7standard | 418 | Karatsu, Yoshifumi (1610) | Lost 1-2 | -161461 |
| 8standard | 510 | Wang, Shensheng (1472) | Lost 0-2 | -181443 |
| top | average opponent: 1659record: 4-4 | new rating: 1443 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 493 | Takada, Narumasa (1500) | Won 2-0 | +191488 |
| 2standard | 46 | Ishida, Syota (1489) | Lost 1-2 | -181470 |
| 3standard | 1001 | Hasegawa, Yuuhei (1491) | Won 2-1 | +181488 |
| 4standard | 820 | Watabe, Tetsuro (1412) | Lost 1-2 | -191469 |
| 5standard | 712 | Ishikawa, Takahiro (1504) | Lost 0-2 | -181451 |
| 6standard | 869 | Kumamoto, Hiroto (1481) | Lost 1-2 | -171434 |
| 7standard | 987 | Araki, Mio (1437) | Lost 0-2 | -181416 |
| 8standard | 942 | Itazu, Boram (1336) | Lost 1-2 | -201396 |
| 9standard | 831 | Watanabe, Kenta (1397) | Won 2-0 | +181414 |
| top | average opponent: 1450record: 3-6 | new rating: 1414 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 679 | Morikawa, Taichi (1634) | Lost 0-2 | -151462 |
| 2sealed | 719 | Kobayashi, Akio (1522) | Lost 0-2 | -171445 |
| 3sealed | 1249 | Cortez, Mark (1465) | Won 2-0 | +181463 |
| 4sealed | 874 | Suda, Makoto (1436) | Won 2-1 | +181481 |
| 5sealed | 955 | Ikebe, Takahiro (1462) | Won 2-0 | +171498 |
| 6sealed | 691 | Chye, Yian Hsiang (1923) | Lost 0-2 | -101488 |
| 7sealed | 721 | Watanabe, Yoshifumi (1518) | Won 2-1 | +181506 |
| 8sealed | 568 | Obata, Ken (1515) | Lost 0-2 | -181488 |
| 9sealed | 639 | Niitani, Nobuhide (1416) | Lost 1-2 | -191469 |
| top | average opponent: 1543record: 4-5 | new rating: 1469 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1473 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 932 | Fukino, Yusuke (1500) | Won 2-1 | +191492 |
| 2sealed | 742 | Naka, Hidehiro (1505) | Lost 0-2 | -181474 |
| 3sealed | 878 | Hirosawa, Yuuichirou (1525) | Lost 0-2 | -171457 |
| 4sealed | 975 | Ito, Jun (1483) | Won 2-0 | +191476 |
| 5sealed | 944 | Otahara, Sho (1471) | Won 2-0 | +171493 |
| 6sealed | 887 | Ootake, Akinobu (1518) | Lost 1-2 | -171476 |
| 7sealed | 878 | Han, Sung-mu (1499) | Won 2-0 | +181494 |
| 9sealed | 725 | McNeace, Shawn (1525) | Lost 0-2 | -171477 |
| top | average opponent: 1503record: 4-4 | new rating: 1477 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 530 | Toyota, Hiroki (1505) | Won 2-0 | +191484 |
| 3sealed | 646 | Matsuo, Hiroyuki (1560) | Draw 1-1 | +11485 |
| 4sealed | 606 | Banno, Kunihiko (1592) | Lost 0-2 | -161469 |
| 5sealed | 695 | Murase, Takahiro (1506) | Won 2-1 | +191488 |
| 6sealed | 625 | Date, Tsutomu (1698) | Lost 0-2 | -151473 |
| top | average opponent: 1572record: 2-2-1 | new rating: 1473 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 654 | Kikuchi, Shou (1616) | Lost 0-2 | -151449 |
| 4standard | 657 | Gotou, Hiroaki (1641) | Won 2-1 | +211470 |
| 5standard | 682 | Miyajima, Jun'Ichi (1708) | Won 2-0 | +231493 |
| 6standard | 573 | Sato, Kouki (1627) | Lost 0-2 | -161477 |
| 7standard | 618 | Kihara, Atsuki (1679) | Lost 0-2 | -141463 |
| 8standard | 654 | Sasaki, Yusuke (1624) | Lost 1-2 | -151448 |
| 9standard | 779 | Tada, Masayuu (1401) | Won 2-0 | +171465 |
| top | average opponent: 1614record: 3-4 | new rating: 1465 | ||
| Grand Prix Kyoto 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 173 | Miura, Shigehiro (1500) | Lost 1-2 | -181482 |
| 2sealed | 196 | Harada, Yoshio (1483) | Won 2-0 | +181500 |
| 3sealed | 143 | Yagura, Hisayoshi (1513) | Lost 0-2 | -181482 |
| 4sealed | 239 | Sumita, Naoto (1484) | Lost 0-2 | -181464 |
| top | average opponent: 1495record: 1-3 | new rating: 1464 | ||