| 100% | RHINE | 5 | River that flows through Germany and the Swiss Alps |
| 52% | MAIN | 4 | River in Germany that flows through Wurzburg to the Rhine |
| 52% | ELBE | 4 | European river that passes through the Czech Republic and Germany |
| 52% | YSER | 4 | River that flows through the ganzepoot |
| 51% | AIRE | 4 | River that flows through Leeds and Skipton |
| 51% | DANUBE | 6 | River that flows through Budapest and Belgrade |
| 51% | DNIEPER | 7 | River that flows through Russia and Ukraine |
| 51% | COLORADO | 8 | River that flows through the Grand Canyon |
| 51% | MOSKVA | 6 | River that flows through the Russian capital |
| 51% | VLTAVA | 6 | River that flows through the heart of Prague |
| 51% | UBANGI | 6 | River that flows through the city of Bangui |
| 50% | REUSS | 5 | River of Switzerland that flows through Lake Lucerne and the town of Bremgarten |
| 50% | CAM | 3 | River that flows through and is hidden in "Cambridge" |
| 49% | ELBE | 4 | European river that flows through the Czech Republic |
| 49% | LIMMAT | 6 | Swiss river that flows through Zurich |
| 49% | CAM | 3 | River that flows through Cambridge to the River Ouse |
| 49% | INDUS | 5 | Major river that flows through China, India and Pakistan |
| 49% | TEES | 4 | River that flows through Middlesbrough to the North Sea |
| 49% | AARE | 4 | River that flows from the Bernese Alps |
| 48% | EUPHRATES | 9 | Major river that flows through Iraq and Syria |
| 46% | PECOS | 5 | River that flows from New Mexico through Texas to the Rio Grande |
| 46% | AAR | 3 | Swiss river that flows into the Rhine (Var.) |
| 45% | ODER | 4 | River that forms part of the border between Germany and Poland |
| 45% | MOSELLE | 7 | River that forms part of the border between Germany and Luxembourg |
| 44% | ELBE | 4 | River that formed part of the border between East and West Germany |
| 43% | ALB | 3 | 32 mile Rhine tributary that flows through the Northern Black Forest and the city of Karlsruhe |
| 43% | SOAR | 4 | River that flows through Leicester |
| 43% | NILE | 4 | River that flows through Egypt |
| 43% | TIGRIS | 6 | River that flows through Baghdad |
| 43% | SEINE | 5 | River that flows through Paris |