Léopold Club played 32 league seasons and cup tournaments in the data, 1896 to 2009. 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).
| 944 | Helmond Sport (Netherlands) | 1.8 |
| 945 | TSC Backa Topola (Serbia) | 1.8 |
| 946 | Khazar Sumqayit (Azerbaijan) | 1.8 |
| 947 | Léopold Club (Belgium) | 1.8 |
| 948 | PTT Ankara (Turkey) | 1.8 |
| 949 | Espérance ST (TUN) | 1.8 |
| 950 | SSV Jahn Regensburg (Germany) | 1.8 |