Hamada, Etsuo
Current rating: 1591
Record: 30-25
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1585 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 718 | Ishikawa, Yuto (1498) | Won 2-1 | +161601 |
| 2standard | 315 | Nishimura, Yuki (1483) | Lost 0-2 | -201581 |
| 3standard | 1248 | Fuzioka, Yuu (1500) | Won 2-0 | +171598 |
| 4standard | 492 | Kobayashi, Kazutaka (Kyoto) (1518) | Won 2-1 | +161614 |
| 5standard | 498 | Sasaki, Yasuhiro (1560) | Lost 1-2 | -191595 |
| 6standard | 959 | Tonozaki, Hiroki (1506) | Won 2-1 | +161611 |
| 7standard | 320 | Suzuki, Takuto (1490) | Lost 0-2 | -201591 |
| top | average opponent: 1508record: 4-3 | new rating: 1591 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 16 | Takagi, Hiroki (1537) | Won 2-0 | +181570 |
| 2sealed | 160 | Kondou, Masayoshi (1598) | Won 2-1 | +181588 |
| 3sealed | 527 | Nakatani, Hiroki (1478) | Won 2-1 | +161604 |
| 4sealed | 247 | Hishida, Akinori (1425) | Lost 0-2 | -211583 |
| 5sealed | 471 | Dortman, Igor (1503) | Won 2-1 | +171600 |
| 6sealed | 274 | Nagai, Kousuke (1646) | Lost 1-2 | -181582 |
| 7sealed | 530 | Shiba, Yunosuke (1612) | Won 2-1 | +191601 |
| 8sealed | 210 | Kato, Satoshi (1658) | Lost 1-2 | -171584 |
| 9sealed | 466 | Ushita, Masanori (1541) | Won 2-0 | +171601 |
| 10draft | 296 | Morotome, Ken (1555) | Lost 1-2 | -191582 |
| 12draft | 152 | Tsujikawa, Taiga (1736) | Lost 0-2 | -151567 |
| 13draft | 155 | Baang, Johan (1547) | Won 2-0 | +181585 |
| top | average opponent: 1570record: 7-5 | new rating: 1585 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 164 | Gocyo, Kyousuke (1500) | Won 2-0 | +181518 |
| 2standard | 56 | Okada, Shizuka (1515) | Won 2-1 | +181536 |
| 3standard | 509 | Nakanishi, Kazuki (1513) | Won 2-1 | +181554 |
| 4standard | 102 | Konishi, Hideaki (1548) | Won 2-1 | +181572 |
| 5standard | 91 | Iwamoto, Nobuyuki (1768) | Won 2-0 | +211593 |
| 6standard | 25 | Sugiyama, Yuya (2069) | Lost 0-2 | -101583 |
| 7standard | 187 | Liu, Yuchen (1864) | Lost 1-2 | -131570 |
| 8standard | 235 | Miyagawa, Yuuta (1560) | Lost 1-2 | -181552 |
| top | average opponent: 1667record: 5-3 | new rating: 1552 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2019 | Inoue, Yuusuke (1574) | Lost 1-2 | -171519 |
| 2sealed | 2287 | Nishioka, Taisuke (1482) | Lost 0-2 | -191500 |
| top | average opponent: 1528record: 0-2 | new rating: 1500 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 979 | Obata, Ken (1500) | Lost 1-2 | -191538 |
| 2sealed | 887 | Takagi, Yui (1687) | Lost 1-2 | -161522 |
| 3sealed | 1074 | Ebihara, Hirotaka (1570) | Won 2-1 | +191541 |
| 4sealed | 1083 | Imamura, Daisuke (1324) | Won 2-0 | +141555 |
| 5sealed | 893 | Saitou, Akikazu (1498) | Lost 1-2 | -191536 |
| top | average opponent: 1516record: 2-3 | new rating: 1536 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 353 | Ehara, Daisuke (1442) | Won 2-1 | +161560 |
| 2modern | 298 | Tanaka, Ryou (1505) | Won 2-1 | +171577 |
| 3modern | 138 | Ishiguro, Satoshi (1576) | Won 2-0 | +181595 |
| 4modern | 107 | Nozaki, Issei (1560) | Lost 0-2 | -181577 |
| 5modern | 96 | Ujihara, Atsushi (1535) | Won 2-1 | +171594 |
| 6modern | 143 | Kusunoki, Hiroyuki (1557) | Lost 0-2 | -191575 |
| 7modern | 256 | Fukui, Shunsuke (1538) | Lost 1-2 | -181557 |
| top | average opponent: 1530record: 4-3 | new rating: 1557 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 534 | Koyama, Kaoru (1568) | Won 2-1 | +191539 |
| 3standard | 572 | Kamo, Riki (1513) | Won 2-1 | +181557 |
| 4standard | 578 | Hirayama, Atsushi (1693) | Lost 0-2 | -161541 |
| 5standard | 638 | Kamal, Ahmad Hilmi Mustaffa (1535) | Won 2-0 | +181559 |
| 6standard | 594 | Itou, Taisei (1521) | Won 2-0 | +171576 |
| 7standard | 568 | Kuo, Tzu-Ching (1832) | Lost 1-2 | -131563 |
| 8standard | 560 | Kiyonaga, Sho (1518) | Lost 0-2 | -191544 |
| top | average opponent: 1597record: 4-3 | new rating: 1544 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 56 | Inami, Yuuki (1480) | Won 2-0 | +181518 |
| 2sealed | 152 | Mishio, Takenori (1519) | Won 2-0 | +181536 |
| 3sealed | 180 | Kunishima, Kenta (1537) | Lost 0-2 | -181518 |
| 4sealed | 140 | Mizuno, Kunihiko (1518) | Lost 1-2 | -181500 |
| 5sealed | 310 | Kogure, Takamasa (1499) | Won 2-0 | +181518 |
| 6sealed | 185 | Mii, Masayuki (1587) | Won 2-1 | +191537 |
| 7sealed | 214 | Tashima, Chihiro (1620) | Lost 1-2 | -171520 |
| top | average opponent: 1537record: 4-3 | new rating: 1520 | ||