Ikeda, Yoshio
Current rating: 1571
Record: 10-6
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 239 | Ha, Sang-Mook (1500) | Lost 0-2 | -181482 |
| 2sealed | 423 | Kunisada, Shougo (1482) | Won 2-0 | +181500 |
| 3sealed | 416 | Higaki, Motohide (1498) | Won 2-0 | +181518 |
| 4sealed | 269 | Nakaigawa, Takeshi (1499) | Won 2-1 | +181536 |
| 5sealed | 91 | Nakamura, Hisashi (1594) | Won 2-0 | +191555 |
| 6sealed | 67 | Fujita, Osamu 834 (1547) | Won 2-0 | +181573 |
| 7sealed | 81 | Ogasawara, Nobuyuki (1571) | Won 2-0 | +181591 |
| 8sealed | 157 | Asahina, Taku (1592) | Lost 1-2 | -181573 |
| 9sealed | 285 | Watanabe, Ryoji (1532) | Won 2-1 | +171590 |
| 10sealed | 69 | Ding, Yi (1512) | Won 2-1 | +161606 |
| 11sealed | 30 | Kiyonaga, Sho (1552) | Lost 1-2 | -191587 |
| 12draft | 65 | Kinoshita, Tomohiro (1652) | Lost 1-2 | -161571 |
| 13draft | 56 | Sunakawa, Keiji (1530) | Lost 1-2 | -191552 |
| 14draft | 27 | Kobayashi, Jun (Ichika (1542) | Won 2-1 | +181570 |
| 16draft | 65 | Kuribayashi, Tatsunori (1560) | Won 2-1 | +171587 |
| 17draft | 42 | Jeong, Hyunwoo (1674) | Lost 0-2 | -161571 |
| average opponent: 1552record: 10-6 | new rating: 1571 | |||