| 100% | ARCTIC | 6 | Ocean into which the Ob River empties |
| 82% | ATLANTIC | 8 | Ocean into which the Amazon River empties |
| 82% | ATLANTIC | 8 | Ocean into which the Orinoco River empties |
| 56% | ATLANTIC | 8 | Ocean that the Orange River empties into |
| 50% | ERIE | 4 | Lake into which the Cuyahoga empties |
| 49% | ELBE | 4 | River into which the Vltava flows |
| 49% | WESER | 5 | River into which the Fulda flows |
| 48% | OHIO | 4 | River into which the Big Sandy flows |
| 48% | OHIO | 4 | River into which the Great Miami flows |
| 48% | ERIE | 4 | Lake into which the Detroit River flows |
| 47% | STYX | 4 | River into which the infant Achilles was dipped |
| 45% | OHIO | 4 | River into which the Big Sandy and the Little Sandy flow |
| 45% | ODER | 4 | River that empties into the Baltic Sea |
| 45% | PECOS | 5 | River that empties into the Rio Grande |
| 44% | BALTIC | 6 | Sea that the Neva River empties into |
| 43% | DNIEPER | 7 | Russian river that empties into the Black Sea |
| 43% | PARNAIBA | 8 | Brazilian river that flows into the Atlantic Ocean |
| 42% | ELBE | 4 | Hamburg's river which flows into the North Sea |
| 41% | SUSQUEHANNA | 11 | US river flowing into the Chesapeake Bay upon which Harrisburg, Pennsylvania stands |
| 40% | BLACKSEA | 8 | Body of water that the Danube river empties into |
| 39% | TOMSK | 5 | City east of the Ob River |
| 38% | ARAL | 4 | Sea into which the Amu Darya flows |
| 38% | HYPERSPACE | 10 | Realm into which the Millennium Falcon jumps |
| 37% | IRTYSH | 6 | Main tributary of the Ob River in Russia |
| 37% | ATLANTIC | 8 | Ocean in which the Titanic sank |
| 36% | URAL | 4 | River into the Caspian |
| 36% | AVON | 4 | River into the Severn |
| 35% | PACIFIC | 7 | Ocean in which the Battle of Midway took place |
| 35% | LENA | 4 | River to the Arctic Ocean |
| 35% | EXE | 3 | River into the English Channel |