Kobayashi, Masakatsu
Current rating: 1423
Record: 25-35-2
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1413 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 295 | Yasokawa, Takahiro (1496) | Draw 1-1 | +11414 |
| 2sealed | 544 | Ochi, Takushi (1410) | Lost 1-2 | -181396 |
| 3sealed | 968 | Muronoi, Shin (1491) | Won 2-1 | +201416 |
| 4sealed | 812 | Shibata, Akira (1547) | Lost 0-2 | -161400 |
| 5sealed | 929 | Yamagishi, Hideaki (1347) | Lost 1-2 | -191381 |
| 6sealed | 968 | Ohara, Satoru (1461) | Won 2-1 | +201401 |
| 7sealed | 824 | Wanchang, Lin (1486) | Won 2-0 | +191420 |
| 8sealed | 676 | Tse, Yuk Yin (1527) | Won 2-0 | +201440 |
| 9sealed | 517 | Nakabayashi, Ryouta (1508) | Lost 0-2 | -171423 |
| top | average opponent: 1475record: 4-4-1 | new rating: 1423 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1397 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 637 | Kusanagi, Hikaru (1500) | Lost 0-2 | -161381 |
| 2standard | 846 | Miyake, Keigo (1481) | Draw 1-1 | +21383 |
| 3standard | 1145 | Kobayashi, Jumpei (1480) | Won 2-0 | +191402 |
| 4standard | 901 | Kawauchi, Kouji (1550) | Lost 1-2 | -151387 |
| 5standard | 1071 | Ogsawara, Akira (1482) | Lost 0-2 | -161371 |
| 6standard | 1124 | Fujita, Daisuke (1455) | Won 2-1 | +191390 |
| 7standard | 963 | Sakai, Takashi (1429) | Won 2-1 | +191409 |
| 8standard | 779 | Yu, Chenghsien (1513) | Won 2-1 | +201429 |
| 9standard | 592 | Kokubo, Masayuki (1519) | Lost 0-2 | -161413 |
| top | average opponent: 1490record: 4-4-1 | new rating: 1413 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1318 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 543 | Takeuchi, Yosuke (1500) | Lost 0-1 | -151303 |
| 2sealed | 663 | Fujita, Yoshito (1521) | Won 2-1 | +221325 |
| 3sealed | 971 | Sasaki, Hideto (1476) | Lost 0-2 | -151310 |
| 4sealed | 880 | Kokura, Hironori (1460) | Won 2-1 | +201330 |
| 5sealed | 858 | Matsushita, Takayuki (1592) | Won 2-1 | +231353 |
| 6sealed | 646 | Kondo, Kazuya (1443) | Won 2-0 | +201373 |
| 7sealed | 358 | Katou, Syouya (1541) | Lost 1-2 | -151358 |
| 8sealed | 559 | Gotou, Kaoru (1520) | Won 2-0 | +211379 |
| 9sealed | 467 | Kozawa, Kazuki (1536) | Won 2-1 | +201399 |
| 10draft | 159 | Yokota, Masaaki (1525) | Lost 0-2 | -151384 |
| 11draft | 171 | Kato, Hiroki (1583) | Won 2-0 | +211405 |
| 12draft | 86 | Nomura, Hidehiro (1656) | Won 2-0 | +231428 |
| 13draft | 140 | Murata, Ryousuke (1649) | Lost 0-2 | -141414 |
| 15draft | 185 | Fujii, Mikiya (1480) | Lost 0-2 | -171397 |
| top | average opponent: 1534record: 8-6 | new rating: 1397 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1324 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 289 | Murase, Tatsuya (1429) | Lost 0-2 | -161308 |
| 2standard | 673 | Saito, Naoki (1481) | Won 2-0 | +211329 |
| 3standard | 900 | Matuoka, Akira (1415) | Lost 1-2 | -171312 |
| 4standard | 1090 | Arakita, Noriko (1484) | Won 2-0 | +211333 |
| 5standard | 832 | Kobayashi, Keitaro (1465) | Lost 1-2 | -151318 |
| top | average opponent: 1455record: 2-3 | new rating: 1318 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1402 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 569 | Kimura, Yoshihiro (1529) | Lost 1-2 | -161386 |
| 2legacy | 780 | Niwa, Takahiro (1442) | Lost 0-2 | -171369 |
| 3legacy | 947 | Nagao, Kengo (1666) | Lost 0-2 | -121357 |
| 4legacy | 954 | Satou, Yuuya (1405) | Lost 0-2 | -171340 |
| 5legacy | 929 | Ozturk, Deren (1454) | Lost 1-2 | -161324 |
| top | average opponent: 1499record: 0-5 | new rating: 1324 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1436 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 876 | Nozawa, Tomoki (1555) | Won 2-1 | +201456 |
| 2sealed | 819 | Funada, Kouichi (1484) | Lost 1-2 | -171439 |
| 3sealed | 931 | Igarashi, Hisashi (1516) | Lost 1-2 | -171422 |
| 4sealed | 1062 | Sakatani, Tsuyoshi (1476) | Lost 0-2 | -171405 |
| 5sealed | 1021 | Furutate, Mikihiko (1291) | Won 2-1 | +161421 |
| 6sealed | 944 | Kazuki, Rika (1367) | Lost 0-2 | -191402 |
| top | average opponent: 1448record: 2-4 | new rating: 1402 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 84 | Takasawa, Yuuki (1541) | Lost 0-2 | -161448 |
| 3standard | 206 | Kawai, Haruka (1497) | Lost 0-2 | -171431 |
| 4standard | 349 | Kawamura, Hirotaka (1482) | Won 2-1 | +191450 |
| 5standard | 287 | Moriya, Daisuke (1701) | Lost 0-2 | -141436 |
| top | average opponent: 1555record: 1-3 | new rating: 1436 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 435 | Uno, Yuta (1500) | Lost 0-2 | -181482 |
| 2standard | 632 | Yoge, Teruhiko (1482) | Lost 1-2 | -181464 |
| 3standard | 683 | Nagai, Katsuaki (1465) | Won 2-1 | +181482 |
| 4standard | 680 | Itou, Tomoaki (1495) | Lost 1-2 | -181464 |
| top | average opponent: 1486record: 1-3 | new rating: 1464 | ||
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 70 | Hanawa, Atsushi (1364) | Won 2-0 | +161516 |
| 2block | 99 | Yatagawa, Kazunori (1518) | Won 2-1 | +181534 |
| 3block | 49 | Taru, Genki (1653) | Won 2-0 | +201554 |
| 4block | 5 | Taniguchi, Hidehisa (1615) | Lost 1-2 | -171537 |
| 5block | 63 | Takasugi, Ryouta (1485) | Lost 0-2 | -191518 |
| 6block | 93 | Rita, Takayuki (1530) | Lost 0-1 | -181500 |
| top | average opponent: 1527record: 3-3 | new rating: 1500 | ||