| length km | river | % Correct |
|---|---|---|
| 1048 | Rhine | 99%
|
| 2811 | Danube | 97%
|
| 1094 | Elbe | 94%
|
| 524 | Main | 86%
|
| 866 | Oder | 78%
|
| 382 | Spree | 76%
|
| 452 | Weser | 76%
|
| 517 | Inn | 72%
|
| 545 | Moselle | 70%
|
| 286 | Isar | 69%
|
| 219 | Ruhr | 64%
|
| 367 | Neckar | 59%
|
| 227 | Saar | 58%
|
| 371 | Ems | 57%
|
| 325 | Havel | 55%
|
| 413 | Saale | 51%
|
| 218 | Fulda | 48%
|
| 292 | Werra | 40%
|
| 191 | Regen | 38%
|
| 220 | Lippe | 37%
|
| 264 | Lech | 35%
|
| 117 | Wupper | 34%
|
| 246 | Lahn | 33%
|
| 281 | Leine | 29%
|
| 260 | Aller | 27%
|
| 124 | Trave | 23%
|
| 49 | Dreisam | 18%
|