| 100% | CHAUTAUQUA | 10 | New York lake that flows into the Allegheny |
| 55% | OTSEGO | 6 | New York lake that's the source of the Susquehanna River |
| 55% | OSAGE | 5 | River that flows into the Lake of the Ozarks |
| 50% | ERIE | 4 | Great Lake that the Detroit River flows into |
| 49% | ERIE | 4 | New York canal that helps connect the Great Lakes to the Atlantic Ocean |
| 48% | OSWEGO | 6 | — River, large stream in upstate New York, US, flowing into Lake Ontario |
| 48% | PECOS | 5 | River from New Mexico that flows into the Rio Grande |
| 46% | ERIE | 4 | Great Lake that flows into Niagara Falls |
| 46% | CHERWELL | 8 | Oxfordshire river that flows into the Thames |
| 45% | PARNAIBA | 8 | Brazilian river that flows into the Atlantic Ocean |
| 45% | AAR | 3 | Swiss river that flows into the Rhine (Var.) |
| 45% | ERIE | 4 | Lake that drains into the Niagara |
| 45% | DANUBE | 6 | Major European river that flows into the Black Sea |
| 45% | OUSE | 4 | 143 mi. British river that flows into the Wash |
| 45% | TEES | 4 | River that flows into the North Sea at Middlesbrough |
| 45% | ERIE | 4 | Lake that drains into the Niagara River |
| 44% | VOLGA | 5 | Longest river in Europe that flows into the Caspian Sea |
| 44% | ILLER | 5 | River that flows into the Danube in the center of Ulm |
| 44% | DART | 4 | River in Devon that flows into the English Channel at Dartmouth |
| 43% | STOUR | 5 | River in Kent that flows into the English Channel at Pegwell Bay |
| 43% | SNOWY | 5 | — River, stream that flows into the Bass Strait near Orbost, Victoria, Australia |
| 43% | OLEAN | 5 | New York city on the Allegheny |
| 43% | ERIE | 4 | Lake that borders Buffalo, New York |
| 43% | OISE | 4 | 212 mi. river that flows into the Seine in the suburbs of Paris |
| 43% | ORB | 3 | Beziers' 84 mile long river that flows into the Mediterranean at Valras-Plage |
| 43% | EMS | 3 | River rising in NW Germany that flows into the North Sea near Emden |
| 42% | SARANAC | 7 | New York river that feeds Lake Champlain |
| 42% | MOISIE | 6 | River in Quebec, Canada, that flows into the St Lawrence River near Sept-Iles |
| 42% | AVE | 3 | 52 mile long Portuguese river that flows into the Atlantic at Vila do Conde |
| 42% | ERIE | 4 | Great Lake that drains into the Niagara River |