| Country | River | Lake | Volume - km³ | % Correct | |
|---|---|---|---|---|---|
| 1 | Zambia and Zimbabwe | Zambezi | Kariba | 180.6 | 100%
|
| 2 | Russia | Angara | Bratsk | 169 | 0%
|
| 5 | Venezuela | Caroni | Guri | 135 | 0%
|
| 8 | Russia | Yenisei | Krasnoyarsk | 73.3 | 0%
|
| 4 | Canada | Manicouagan | Manicouagan | 141.85 | 0%
|
| 6 | Egypt and Sudan | Nile | Nasser | 132 | 0%
|
| 10 | Canada | La Grande | Robert-Bourassa | 61.71 | 0%
|
| 3 | Ghana | Volta | Volta | 150 | 0%
|
| 7 | Canada | Peace | Williston | 74.3 | 0%
|
| 9 | Russia | Zeya | Zeya | 68.4 | 0%
|