| Miles and Outflow | Name of River | % Correct |
|---|---|---|
| 2,348 to Gulf of Mexico | Mississippi | 97%
|
| 3,740 to Gulf of Mexico | Mississippi-Missouri | 97%
|
| 2,315 to Mississippi | Missouri | 97%
|
| 4,007 miles to Atlantic | Amazon | 96%
|
| 4,145 to Mediterranean Sea | Nile | 96%
|
| 3,720 to China Sea | Yangtze (Changjiang) | 91%
|
| 1,776 to Black Sea | Danube | 87%
|
| 2,903 to Gulf of Chihli | Huang He (Yellow) | 86%
|
| 2,290 to Caspian Sea | Volga | 86%
|
| 2,900 to Atlantic | Congo (Zaire) | 83%
|
| 1.560 to Bay of Bengal | Ganges | 83%
|
| 2,600 to South China Sea | Mekong | 80%
|
| 2,600 to Gulf of Guinea | Niger | 80%
|
| 1,450 to Gulf of California | Colorado | 75%
|
| 1,800 to Arabian Sea | Indus | 73%
|
| 820 to North Sea | Rhine | 72%
|
| 1,885 to Gulf of Mexico | Rio Grande | 72%
|
| 800 to Gulf of St. Lawrence | St. Lawrence | 71%
|
| 3,360 to Arctic Ocean | Ob-Irtysh | 69%
|
| 1,510 to Shatt-al-Arab | Euphrates | 67%
|
| 1,180 to Shatt-al-Arab | Tigris | 67%
|
| 1,979 to Bering Sea | Yukon | 66%
|
| 3,030 to Atlantic | Parana-Plata | 62%
|
| 1,700 to Mozambique Channel | Zambezi | 62%
|
| 3,590 to Tatar Strait | Amur-Argun | 60%
|
| 2,730 to Laptev Sea | Lena | 59%
|
| 1,300 to Mississippi | Ohio-Allegheny | 59%
|
| 2,635 to Beaufort Sea Arctic | MacKenzie | 56%
|
| 3,650 to Arctic -Kara Sea | Yenisei-Angara | 48%
|
| 1,450 to Mississippi River | Arkansas | 47%
|
| 1,770 to Ganges River | Brahmaputra | 47%
|
| 2,330 to Indian Ocean | Murray-Darling | 47%
|
| 1,243 to Pacific | Columbia (The Gem of theOcean) | 44%
|
| 1,300 to Atlantic | Orange | 44%
|
| 1,400 to Gulf or Mexico | Archafalaya-Red | 41%
|
| 1,600 to Atlantic | Orinoco | 41%
|
| 1,575 to Caspian Sea | Ural | 34%
|
| 1,300 to Bay of Bengal | Irrawaddy | 31%
|
| 1,610 to Parana River | Paraguay | 30%
|
| 1,370 to Aral Sea | Syr Darya | 27%
|
| 1,578 to Aral Sea | Amu Darya | 26%
|
| 1,988 to Atlantic | Sao Francisco | 23%
|
| 1,710 to Atlantic | Para-Tocantins | 22%
|
| 1,750 to Bay of Bengal | Salween | 19%
|
| 2,013 to Amazon River | Madeira | 18%
|
| 1,600 to Hudson Bay | Nelson-Saskatchewan | 18%
|
| 1,420 to Black Sea | Dneiper | 13%
|
| 1,860 to Amazon River | Purus | 11%
|
| 1,860 to Yenesei River | Tunguska | 8%
|
| 1,320 to Arctic | Kolyma | 7%
|
| 1,338 to Congo | Kasai | 6%
|