Oosumi, Kento
Current rating: 1572
Record: 9-5-1
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 173 | Fujisato, Hiroshi (1477) | Won 2-0 | +171539 |
| 2standard | 264 | Takahashi, Kouhei (1430) | Won 2-0 | +161555 |
| 3standard | 477 | Naganawa, Yuuki (1614) | Lost 0-1 | -171538 |
| 4standard | 275 | Ohta, Masanori (1514) | Lost 1-2 | -191519 |
| 5standard | 677 | Fukuoka, Naoto (1486) | Won 2-0 | +181537 |
| 6standard | 464 | Yang, Jun-mo (1584) | Draw 1-1 | +11538 |
| 7standard | 458 | Kubota, Youkou (1480) | Won 2-0 | +171555 |
| 8standard | 322 | Tataetishi, Yuki (1532) | Won 2-1 | +171572 |
| average opponent: 1515record: 5-2-1 | new rating: 1572 | |||
| Grand Prix Hiroshima 2011 (ISD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 45 | Junya K., (1500) | Won 2-0 | +181518 |
| 2standard | 20 | Nakagawa, Takuma (1485) | Lost 1-2 | -191499 |
| 3standard | 143 | Mori, Kouta (1499) | Won 2-0 | +181517 |
| 4standard | 219 | DeTora, Melissa (1827) | Won 2-1 | +241541 |
| 5standard | 117 | Takahashi, Nozomu (1581) | Lost 0-2 | -171524 |
| 6standard | 143 | Morinaga, Masaharu (1409) | Won 2-1 | +161540 |
| 7standard | 131 | Imai, Kouhei (1543) | Lost 0-2 | -181522 |
| average opponent: 1549record: 4-3 | new rating: 1522 | |||