Uccle Sport played 22 league seasons and cup tournaments in the data, 1911 to 1958. 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).
| 1048 | Floriana (MLT) | 1.4 |
| 1049 | SD Ponferradina (Spain) | 1.4 |
| 1050 | DHC (Netherlands) | 1.4 |
| 1051 | Uccle Sport (Belgium) | 1.4 |
| 1052 | Carcavelinhos (Portugal) | 1.4 |
| 1053 | Karagümrük (Turkey) | 1.4 |
| 1054 | VfB Königsberg (Germany) | 1.4 |