FC Basel played 48 league seasons and cup tournaments in the data, 1964 to 2026. 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).
| 303 | Valenciennes FC (France) | 11.8 |
| 304 | Ayr United (Scotland) | 11.7 |
| 305 | Real Murcia (Spain) | 11.7 |
| 306 | FC Basel (Switzerland) | 11.6 |
| 307 | Arminia Bielefeld (Germany) | 11.6 |
| 308 | KSC Lokeren (Belgium) | 11.5 |
| 309 | Old Etonians (England) | 11.5 |
More: the world top 200