Nonaka, Harufumi
Current rating: 1477
Record: 19-19-4
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 432 | Jinba, Nobuaki (1380) | Lost 0-2 | -211542 |
| 2pioneer | 417 | Hashimoto, Keisuke (1535) | Lost 0-2 | -181524 |
| 3pioneer | 780 | Tashima, Kenji (1373) | Lost 0-2 | -211503 |
| 4pioneer | 777 | Yasuda, Keita (1334) | Won 2-1 | +151518 |
| 5pioneer | 703 | Kishimoto, Hirohisa (1463) | Lost 1-2 | -191499 |
| 6pioneer | 647 | Nishi, Daichi (1395) | Lost 1-2 | -201479 |
| 7pioneer | 543 | Suzuki, Yuga (1384) | Won 2-1 | +161495 |
| 8pioneer | 431 | Miyazaki, Noritsugu (1452) | Lost 1-2 | -181477 |
| top | average opponent: 1415record: 2-6 | new rating: 1477 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1588 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 170 | Kometani, Yuki (1628) | Lost 0-2 | -171571 |
| 2modern | 970 | Iijima, Hiderou (1481) | Won 2-0 | +161587 |
| 3modern | 854 | Nishikawa, Tatsuya 9163 (1544) | Lost 1-2 | -191568 |
| 4modern | 964 | Naka, Yuuji (1479) | Draw 1-1 | -11567 |
| 5modern | 951 | Ichinose, Yuki (1435) | Won 2-0 | +151582 |
| 6modern | 732 | Fujihira, Kohei (1698) | Lost 0-2 | -161566 |
| 7modern | 734 | Honda, Shohei (1473) | Won 2-0 | +171583 |
| 8modern | 560 | Liu, Rongpei (1498) | Lost 1-2 | -201563 |
| top | average opponent: 1530record: 3-4-1 | new rating: 1563 | ||
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 87 | Suzuki, Yuto (1520) | Won 2-0 | +171569 |
| 2legacy | 5 | Terai, Tadayuki (1861) | Lost 0-2 | -131556 |
| 3legacy | 444 | Suzuki, Kento (1423) | Won 2-1 | +161572 |
| 4legacy | 289 | Ootsuki, Masahiro (1484) | Lost 1-2 | -201552 |
| 5legacy | 370 | Suzuike, Fumiyasu (1787) | Lost 0-2 | -131539 |
| 6legacy | 492 | Lucas, Jeremy (1498) | Won 2-0 | +171556 |
| 7legacy | 343 | Furukawa, Syun6268 (1472) | Won 2-1 | +161572 |
| 8legacy | 311 | Shinohara, Gen 8257 (1448) | Won 2-1 | +161588 |
| top | average opponent: 1562record: 5-3 | new rating: 1588 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 458 | Mori, Kazumasa (1498) | Won 2-0 | +181532 |
| 2legacy | 362 | Irie, Shun (1479) | Draw 1-1 | -11531 |
| 3legacy | 602 | Nishibori, Takayuki (1518) | Won 2-1 | +171548 |
| 4legacy | 314 | Rapera, Rainieralexis (1501) | Draw 1-1 | 01548 |
| 5legacy | 540 | Monjiyama, Daisuke (1547) | Won 2-0 | +181566 |
| 6legacy | 338 | Urase, Ryosuke (1857) | Draw 1-1 | +51571 |
| 7legacy | 395 | Matsunaga, Koutarou (1544) | Lost 1-2 | -191552 |
| 8legacy | 624 | Emanuelsson, Julius (1521) | Won 2-0 | +181570 |
| 9legacy | 386 | Toriuchi, Daizo (1577) | Lost 1-2 | -181552 |
| top | average opponent: 1560record: 4-2-3 | new rating: 1552 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 163 | Arai, Yuuya (1519) | Won 2-0 | +181518 |
| 2sealed | 306 | Notake, Shozaburo (1519) | Won 2-1 | +181536 |
| 3sealed | 93 | Itou, Masahiro1014 (1198) | Lost 0-2 | -241512 |
| 4sealed | 246 | Sorakup, Aekarash (1603) | Won 2-0 | +201532 |
| 5sealed | 141 | Yamakabe, Syun (1517) | Won 2-0 | +181550 |
| 6sealed | 58 | Tateishi, Yutarou (1551) | Won 2-1 | +181568 |
| 7sealed | 58 | Saitou, Yuu8520 (1570) | Lost 1-2 | -181550 |
| 8sealed | 152 | Kozai, Tomonori (1577) | Lost 0-2 | -181532 |
| 9sealed | 138 | Hoshina, Ryousuke (1508) | Lost 0-2 | -181514 |
| top | average opponent: 1507record: 5-4 | new rating: 1514 | ||