Arai, Tadayuki
Current rating: 1529
Record: 21-18-2
| Grand Prix Montreal 2019 (ELD limited) | starting rating: 1551 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 239 | Sherman, Grant (1610) | Won 2-0 | +191570 |
| 2sealed | 227 | Gatien, Xavier (1518) | Draw 1-1 | -11569 |
| 3sealed | 170 | Enns, Galen (1401) | Lost 1-2 | -211548 |
| 4sealed | 253 | Liu, Geoffrey (1508) | Lost 0-2 | -191529 |
| top | average opponent: 1509record: 1-2-1 | new rating: 1529 | ||
| Grand Prix Detroit 2019 (M20 limited) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 122 | Foster, Andrew (1426) | Won 2-1 | +161555 |
| 2sealed | 140 | Zimet, Noam (1503) | Lost 0-2 | -191536 |
| 3sealed | 280 | Shea, Ed (1485) | Won 2-1 | +171553 |
| 4sealed | 184 | Evans, Jacob (1523) | Lost 0-2 | -191534 |
| 5sealed | 192 | Cowden, Nick (1518) | Lost 1-2 | -181516 |
| 6sealed | 216 | Kahl, Harley (1471) | Won 2-1 | +171533 |
| 7sealed | 172 | Blackwell, Tony (1507) | Won 2-0 | +181551 |
| top | average opponent: 1490record: 4-3 | new rating: 1551 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1531 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 586 | Hasegawa, Ryota (1470) | Won 2-1 | +171548 |
| 2standard | 209 | Izumi, Yuta (1430) | Won 2-1 | +161564 |
| 3standard | 181 | Imamura, Norihide (1497) | Lost 0-2 | -191545 |
| 4standard | 755 | Satou, Tomoki (1535) | Won 2-1 | +181563 |
| 5standard | 246 | Ohkawa, Yusuke (1520) | Won 2-1 | +171580 |
| 6standard | 184 | Son, Kii (1580) | Lost 0-2 | -181562 |
| 7standard | 325 | Saito, Keisuke (1415) | Won 2-1 | +151577 |
| 8standard | 435 | Sugiyama, Takanori (1462) | Lost 0-2 | -201557 |
| 9standard | 523 | Ng, Jansen (1505) | Won 2-1 | +171574 |
| 10standard | 235 | Tsujimoto, Hideki (1760) | Won 2-1 | +221596 |
| 11standard | 178 | Feng, Ren (1541) | Lost 0-2 | -191577 |
| 12standard | 296 | Tahara, Ippei (1555) | Won 2-0 | +171594 |
| 13standard | 193 | Nitta, Ryou (1642) | Lost 1-2 | -171577 |
| 14standard | 277 | Kurosawa, Yuuki7831 (1533) | Lost 1-2 | -191558 |
| 15standard | 261 | Ehara, Makoto (1482) | Lost 0-2 | -191539 |
| top | average opponent: 1528record: 8-7 | new rating: 1539 | ||
| Grand Prix Vancouver 2016 (OGW limited) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 8 | Watters, Dakota (1462) | Lost 1-2 | -201537 |
| 2sealed | 612 | Wiseley, Martin (1451) | Lost 1-2 | -191518 |
| 3sealed | 823 | Swift, Jake (1464) | Won 0-0 | +171535 |
| 4sealed | 655 | Fadich, Andrew (1467) | Won 2-0 | +171552 |
| 5sealed | 397 | Porter, Shawn (1525) | Won 2-1 | +171569 |
| 6sealed | 388 | Pollard, Kyle (1521) | Lost 0-2 | -191550 |
| 7sealed | 436 | Smith, Matteo (1501) | Lost 0-2 | -191531 |
| top | average opponent: 1485record: 3-4 | new rating: 1531 | ||
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 43 | Satou, Naoki (1500) | Draw 1-1 | 01500 |
| 2block | 123 | Hirose, Daichi (1500) | Won 2-0 | +181518 |
| 3block | 79 | Okamoto, Masahiro (1517) | Lost 0-2 | -181500 |
| 4block | 162 | Fuji, Yuusuke (1496) | Won 2-0 | +181518 |
| 5block | 121 | Tanaka, Yousuke (1584) | Won 2-0 | +191537 |
| 6block | 82 | Kouno, Tomohiro (1591) | Won 2-0 | +191556 |
| 7block | 43 | Tsuchiya, Heinrich (1612) | Won 2-1 | +191575 |
| 8block | 33 | Hasegawa, Hironobu (1573) | Lost 1-2 | -181557 |
| top | average opponent: 1547record: 5-2-1 | new rating: 1557 | ||