| 100% | VLTAVA | 6 | River that flows under Prague's Charles Bridge |
| 61% | THAMES | 6 | River that flows under the Tower Bridge in London |
| 49% | VLTAVA | 6 | River that flows through central Prague |
| 48% | VLTAVA | 6 | River that flows through the heart of Prague |
| 43% | AMU | 3 | ___ Darya River that flows underneath Afghanistan-Uzbekistan Friendship Bridge |
| 41% | OHIO | 4 | River that flows alongside 39-Across's hometown of Louisville, Kentucky |
| 39% | SOAR | 4 | River that flows through Leicester |
| 39% | NILE | 4 | River that flows through Egypt |
| 39% | TIGRIS | 6 | River that flows through Baghdad |
| 39% | SEINE | 5 | River that flows through Paris |
| 39% | MERSEY | 6 | River that flows through Liverpool |
| 39% | MOSKVA | 6 | River that flows through Moscow |
| 39% | ISAR | 4 | River that flows through Bavaria |
| 39% | RHINE | 5 | River that flows through Cologne |
| 39% | TIBER | 5 | River that flows through Rome |
| 38% | ARNO | 4 | River that flows through Florence, Italy |
| 38% | NEVA | 4 | River that flows by the Hermitage |
| 38% | NILE | 4 | River that flows south to north |
| 38% | NILE | 4 | River that flows in East Africa |
| 38% | LIFFEY | 6 | River that flows through Dublin, Ireland |
| 38% | CHARLES | 7 | River that flows past four universities |
| 38% | YSER | 4 | River that flows through the ganzepoot |
| 38% | AARE | 4 | River that flows from the Bernese Alps |
| 38% | COLORADO | 8 | River that flows through the Grand Canyon |
| 38% | NILE | 4 | River that flows through 11 African countries |
| 38% | AIRE | 4 | River that flows through Leeds and Skipton |
| 38% | MEKONG | 6 | River that flows through six Asian countries |
| 38% | DANUBE | 6 | River that flows through Budapest and Belgrade |
| 38% | MOSKVA | 6 | River that flows through the Russian capital |
| 38% | NILE | 4 | River that flows from Burundi to Egypt |