| City | River | % Correct |
|---|---|---|
| 1) New York City | Hudson | 100%
|
| 5) New Orleans | Mississippi | 93%
|
| 23) Turin | Po | 93%
|
| 4) Washington DC | Potomac | 93%
|
| 17) London | Thames | 93%
|
| 21) Bratislava | Danube | 87%
|
| 29) Cairo | Nile | 87%
|
| 3) Cincinatti | Ohio | 87%
|
| 20) Cologne | Rhine | 87%
|
| 7) El Paso | Rio Grande | 87%
|
| 19) Paris | Seine | 87%
|
| 9) Bullhead City | Colorado | 80%
|
| 6) Omaha | Missouri | 80%
|
| 2) Montreal | St Lawrence | 80%
|
| 14) Manaus | Amazon | 73%
|
| 31) Kinshasa | Congo | 73%
|
| 38) Vientiane | Mekong | 73%
|
| 35) Volgograd | Volga | 73%
|
| 39) Shanghai | Yangtze | 73%
|
| 22) Lyon | Rhone | 67%
|
| 30) Niamey | Niger | 53%
|
| 24) Kyiv | Dnieper | 47%
|
| 37) Karachi | Indus | 47%
|
| 28) St Petersburg | Neva | 47%
|
| 34) Livingstone | Zambezi | 47%
|
| 25) Frankfurt | Main | 40%
|
| 27) Wroclaw | Oder | 33%
|
| 15) Buenos Aires | Plata | 33%
|
| 40) Novosibirsk | Ob | 27%
|
| 10) Portland | Willamette | 20%
|
| 13) Fairbanks | Chena | 0%
|
| 11) Nashville | Cumberland | 0%
|
| 36) Astana | Ishim | 0%
|
| 18) Cork | Lee | 0%
|
| 16) Barranquilla | Magdalena | 0%
|
| 12) Edmonton | North Saskatchewan | 0%
|
| 32) Gaborone | Notwane | 0%
|
| 8) Tucson | Santa Cruz | 0%
|