AS Oostende played 39 league seasons and cup tournaments in the data, 1923 to 1980. Success weighs every finish by how hard that competition was to win; Efficiency is the share of what the club could have won that it did win; Edge compares that with an average participant (×1.00).
| 1057 | Al-Jazeera (UNK) | 1.4 |
| 1058 | VfB Lübeck (Germany) | 1.4 |
| 1059 | KFC (Netherlands) | 1.4 |
| 1060 | AS Oostende (Belgium) | 1.4 |
| 1061 | Viktoria Aschaffenburg (Germany) | 1.4 |
| 1062 | Univ. de Chile (UNK) | 1.4 |
| 1063 | FK Rad (Serbia) | 1.4 |