Japan
IMO 1990 ►
| Contestant | P1 | P2 | P3 | P4 | P5 | P6 | Total | Rank | Award |
|---|---|---|---|---|---|---|---|---|---|
| Yosuke Suma | 4 | 7 | 2 | 0 | 7 | 7 | 27 | 46 | Silver medal |
| Atsuo Yamauchi | 7 | 7 | 3 | 7 | 1 | 0 | 25 | 56 | Silver medal |
| Osamu Iyama | 0 | 7 | 0 | 7 | 7 | 1 | 22 | 80 | Bronze medal |
| Tomoyuki Katsumata | 4 | 3 | 1 | 0 | 5 | 1 | 14 | 171 | |
| Kenichi Kono | 4 | 1 | 1 | 2 | 1 | 1 | 10 | 225 | |
| Atsushi Kitaueda | 1 | 0 | 2 | 1 | 5 | 0 | 9 | 239 | |
| Team | 20 | 25 | 9 | 17 | 26 | 10 | 107 | 20 | S, S, B |