| Długość Rzeki | Rzeka | % Poprawnych |
|---|---|---|
| 1047 km | Wisła | 98%
|
| 2888 km | Dunaj | 94%
|
| 3531 km | Wołga | 93%
|
| 854 km | Odra | 90%
|
| 1233 km | Ren | 76%
|
| 2285 km | Dniepr | 72%
|
| 1020 km | Loara | 68%
|
| 1352 km | Dniestr | 60%
|
| 1165 km | Łaba | 57%
|
| 1007 km | Tag | 52%
|
| 1950 km | Don | 44%
|
| 2428 km | Ural | 43%
|
| 930 km | Ebro | 38%
|
| 937 km | Niemen | 37%
|
| 1020 km | Dźwina | 25%
|
| 1500 km | Oka | 25%
|
| 1805 km | Kama | 22%
|
| 966 km | Cisa | 21%
|
| 940 km | Sawa | 20%
|
| 895 km | Duero | 19%
|
| 1810 km | Peczora | 19%
|
| 953 km | Prut | 13%
|
| 1053 km | Doniec | 12%
|
| 925 km | Moza | 12%
|
| 1130 km | Desna | 8%
|
| 1430 km | Biełaja | 7%
|
| 1314 km | Wiatka | 6%
|
| 979 km | Chopior | 4%
|
| 1130 km | Wyczegda | 4%
|
| 966 km | Mezeń | 2%
|