| Length (miles) | River Name | % Correct |
|---|---|---|
| 4132 | Nile | 99%
|
| 2920 | Congo | 96%
|
| 2610 | Niger | 84%
|
| 2693 | Zambezi | 84%
|
| 1300 | Orange River | 58%
|
| 994 | Blue Nile | 48%
|
| 1020 | Senegal | 45%
|
| 1118 | Limpopo | 44%
|
| 994 | Volta | 27%
|
| 1411 | Ubangi–Uele | 25%
|
| 1338 | Kasai | 23%
|
| 994 | Okavango | 21%
|
| 870 | Benue | 10%
|
| 752 | Vaal | 10%
|
| 982 | Jubba–Shebelle | 4%
|
| 621 | Kwango | 4%
|
| 746 | Shire River | 4%
|
| 621 | Draa | 3%
|
| 715 | Sankuru | 1%
|
| 795 | Lomami | 0%
|