Koyama, Yuki(Yokohama)
Current rating: 1513
Record: 4-3-1
| Grand Prix Utsunomiya 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 93 | Koen, Yusuke (1384) | Won 2-0 | +161516 |
| 2sealed | 75 | Higuchi, Daisaku (1500) | Draw 1-1 | 01516 |
| 3sealed | 107 | Suzuki, Yuuji (1522) | Lost 1-2 | -181498 |
| 4sealed | 187 | Yoshida, Mitsutaka (1314) | Won 2-0 | +141512 |
| 5sealed | 124 | Saito, Kaoru (1518) | Lost 0-2 | -171495 |
| 6sealed | 157 | Mashiko, Shinsuke (1501) | Won 2-0 | +181513 |
| 7sealed | 112 | Toda, Hirotsugu (1517) | Lost 0-2 | -181495 |
| 8sealed | 1 | Suzuki, Mayumi (1492) | Won 2-0 | +181513 |
| average opponent: 1468record: 4-3-1 | new rating: 1513 | |||