KRC Harelbeke played 33 league seasons and cup tournaments in the data, 1977 to 2019. 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).
| 1203 | Frisia (Netherlands) | 1.0 |
| 1204 | Union Solingen (Germany) | 1.0 |
| 1205 | VfR Kaiserslautern (Germany) | 1.0 |
| 1206 | KRC Harelbeke (Belgium) | 1.0 |
| 1207 | Ituano (Brazil) | 1.0 |
| 1208 | Patro Eisden (Belgium) | 1.0 |
| 1209 | SV Sandhausen (Germany) | 1.0 |