| Länge | Fluss | % Korrekt |
|---|---|---|
| 553 km | Main | 96%
|
| 558 km | Mosel | 94%
|
| 221 km | Ruhr | 89%
|
| 384 km | Neckar | 88%
|
| 268 km | Lippe | 75%
|
| 250 km | Lahn | 69%
|
| 117 km | Wupper | 57%
|
| 874 km | Maas | 54%
|
| 89 km | Ahr | 52%
|
| 156 km | Sieg | 48%
|
| 116 km | Nahe | 36%
|
| 288 km | Aare | 31%
|
| 103 km | Erft | 30%
|
| 84 km | Emscher | 27%
|
| 217 km | Ill | 26%
|
| 93 km | Kinzig | 21%
|
| 90 km | Elz | 13%
|
| 90 km | Wutach | 11%
|
| 135 km | Thur | 9%
|
| 102 km | Wied | 9%
|
| 94 km | Argen | 4%
|
| 82 km | Moder | 3%
|