| Body of water | Rivers | % Correct |
|---|---|---|
| Gulf of Mexico | Mississippi | Rio Grande | Grijalva | Brazos | Mobile | 100%
|
| Mediterranean Sea | Nile | Rhône | Ebro | Po | Maritsa | 97%
|
| Atlantic Ocean | Amazon | Congo | Río de la Plata | Niger | St. Lawrence | 95%
|
| Black Sea | Danube | Dnieper | Don | Dniester | Southern Bug | 95%
|
| Bay of Bengal | Ganges | Godavari | Krishna | Mahanadi | Brahmani | 95%
|
| Pacific Ocean | Amur | Yangtze | Yellow | Mekong | Columbia | 92%
|
| North Sea | Rhine | Elbe | Göta älv | Glomma | Weser | 92%
|
| Caspian Sea | Volga | Ural | Kura | Terek | Sefid-Rud | 82%
|
| Baltic Sea | Neva | Vistula | Oder | Neman | Daugava | 79%
|
| Arctic Ocean | Ob | Yenisei | Lena | Mackenzie | Kolyma | 79%
|
| Bay of Biscay | Loire | Garonne | Adour | Charente | Nivelle | 76%
|
| Bering Sea | Yukon | Anadyr | Kuskokwim | Kamchatka | Kvichak | 71%
|
| Arabian Sea | Indus | Narmada | Tapti | Mahi | Sabarmati | 68%
|
| Indian Ocean | Zambezi | Jubba | Limpopo | Rufiji | Ruvuma | 68%
|
| Andaman Sea | Irrawaddy | Salween | Sittaung | Tenasserim | Ataran | 45%
|
| Hudson Bay | Nelson | Thelon | Churchill | Albany | Moose | 24%
|