Narumi, Masaru
Current rating: 1319
Record: 20-35-1
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1307 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 13 | Katou, Susumu (1636) | Lost 0-2 | -131294 |
| 3sealed | 897 | Usuzawa, Yuuki (1554) | Won 2-0 | +231317 |
| 4sealed | 561 | Ishii, Kouki (1572) | Lost 0-2 | -131304 |
| 5sealed | 853 | Aota, Hidekazu (1474) | Won 2-1 | +211325 |
| 6sealed | 634 | Imai, Seisuke (1421) | Lost 1-2 | -171308 |
| 7sealed | 589 | Satou, Marin (1592) | Lost 1-2 | -131295 |
| 8sealed | 477 | Shibata, Toru (1617) | Won 2-0 | +241319 |
| top | average opponent: 1552record: 3-4 | new rating: 1319 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1328 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 765 | Shiura, Takefumi (1477) | Lost 0-2 | -161312 |
| 2modern | 626 | Takamiya, Issei (1414) | Lost 0-2 | -161296 |
| 3modern | 1207 | Matsuo, Yoshiyuki (1561) | Lost 0-2 | -131283 |
| 4modern | 1195 | Furuya, Satoshi (1131) | Won 2-0 | +151298 |
| 5modern | 1035 | Hayashida, Yoshiyuki (1467) | Won 2-0 | +211319 |
| 6modern | 877 | Takada, Narumasa (1509) | Won 2-1 | +221341 |
| 7modern | 567 | Furuta, Masayuki (1464) | Lost 0-2 | -161325 |
| 8modern | 600 | Katoh, Wataru (1305) | Lost 0-2 | -181307 |
| top | average opponent: 1416record: 3-5 | new rating: 1307 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1378 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 663 | Kohira, Yoshitaka (1597) | Won 2-0 | +221400 |
| 2standard | 647 | Mayaguchi, Masaru (1612) | Lost 1-2 | -141386 |
| 3standard | 910 | Jung, Ga Ram (1621) | Won 2-0 | +221408 |
| 4standard | 735 | Takahara, Sho (1666) | Lost 0-2 | -141394 |
| 5standard | 618 | Fukuda, Yu (1457) | Lost 0-2 | -161378 |
| 6standard | 770 | Oikawa, Masafumi (1393) | Lost 1-2 | -181360 |
| 7standard | 772 | Furuichi, Takenori (1486) | Lost 0-2 | -161344 |
| 8standard | 728 | Sasaki, Ken (1432) | Lost 1-2 | -161328 |
| top | average opponent: 1533record: 2-6 | new rating: 1328 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1408 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 36 | Okamoto, Yuuya (1693) | Lost 1-2 | -131395 |
| 2sealed | 876 | Uchida, Tomoaki (1417) | Lost 1-2 | -171378 |
| 3sealed | 1077 | Morita, Yuta (1461) | Won 2-1 | +191397 |
| 4sealed | 824 | Murahata, Hiroyuki (1521) | Lost 0-2 | -151382 |
| 5sealed | 1014 | Matsuya, Takahiro (1242) | Won 2-0 | +151397 |
| 6sealed | 773 | Furuya, Satoshi (1205) | Won 2-0 | +151412 |
| 7sealed | 657 | Hiroi, Yuta (1484) | Lost 1-2 | -171395 |
| 8sealed | 596 | Tabei, Hirotomo (1444) | Lost 1-2 | -171378 |
| top | average opponent: 1433record: 3-5 | new rating: 1378 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1425 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 234 | Kase, Koichi (1405) | Won 2-0 | +171442 |
| 2standard | 212 | Ueda, Ryo (1529) | Lost 0-2 | -161426 |
| 3standard | 1071 | Van Cleef, David (1496) | Won 2-0 | +191445 |
| 4standard | 520 | Kamal, Ahmad Hilmi Mustaffa (1364) | Won 2-1 | +171462 |
| 5standard | 240 | Kuroda, Yoshirou (1472) | Lost 1-2 | -181444 |
| 6standard | 614 | Nakamura, Yuta7609 (1444) | Lost 0-2 | -181426 |
| 7standard | 785 | Chatani, Yasutomo (1455) | Lost 1-2 | -181408 |
| top | average opponent: 1452record: 3-4 | new rating: 1408 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1454 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 185 | Seki, Manabu (1450) | Draw 1-1 | 01454 |
| 2standard | 215 | Omonishi, Kojiro (1527) | Lost 0-2 | -161438 |
| 3standard | 306 | Noto, Ryuuichi (1480) | Won 2-0 | +181456 |
| 4standard | 275 | Cardoso, Ricardo (1644) | Lost 0-2 | -141442 |
| 5standard | 342 | Hamada, Takahiro (1490) | Lost 0-2 | -171425 |
| top | average opponent: 1518record: 1-3-1 | new rating: 1425 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 161 | Tsunagi, Noriaki (1664) | Won 2-0 | +221490 |
| 2sealed | 17 | Kitamoto, Hiroki (1595) | Lost 0-2 | -161474 |
| 3sealed | 119 | Narumiya, Ryuuma (1344) | Won 2-1 | +151489 |
| 4sealed | 152 | Inoue, Masanao (1517) | Lost 1-2 | -171472 |
| 5sealed | 221 | Motoyanagi, Youhei (1497) | Lost 0-2 | -181454 |
| top | average opponent: 1523record: 2-3 | new rating: 1454 | ||
| Grand Prix Shizuoka 2008 (MOR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 155 | Yamamoto, Akimasa (1635) | Lost 0-2 | -161484 |
| 2standard | 331 | Kimura, Shigeki (1444) | Lost 1-2 | -181466 |
| 3standard | 336 | Miyasaka, Sho (1439) | Lost 1-2 | -191447 |
| 4standard | 375 | Yamaguchi, Takao (1446) | Won 2-1 | +181465 |
| 5standard | 329 | Yamamoto, Yasutomo (1465) | Won 2-1 | +181483 |
| 6standard | 244 | Takahashi, Teo (1479) | Lost 0-2 | -181465 |
| 7standard | 113 | Nakamura, Masanobu (1461) | Won 2-0 | +181483 |
| 8standard | 76 | Nomura, Eiji (1667) | Lost 0-2 | -151468 |
| top | average opponent: 1504record: 3-5 | new rating: 1468 | ||