| Długość | Nazwa rzeki | % Poprawnych |
|---|---|---|
| 1047 km | Wisła | 100%
|
| 854 km | Odra | 96%
|
| 808 km | Warta | 84%
|
| 772 km | Bug | 81%
|
| 443 km | San | 55%
|
| 484 km | Narew | 50%
|
| 303 km | Wieprz | 44%
|
| 274 km | Dunajec | 42%
|
| 388 km | Noteć | 41%
|
| 319 km | Pilica | 32%
|
| 252 km | Nysa Łużycka | 30%
|
| 205 km | Wisłok | 29%
|
| 272 km | Bóbr | 24%
|
| 155 km | Biebrza | 22%
|
| 238 km | Brda | 22%
|
| 182 km | Nysa Kłodzka | 22%
|
| 164 km | Wisłoka | 17%
|
| 166 km | Bzura | 15%
|
| 207 km | Drwęca | 14%
|
| 198 km | Wda | 14%
|
| 249 km | Wkra | 14%
|
| 264 km | Łyna | 11%
|
| 151 km | Nida | 11%
|
| 217 km | Prosna | 11%
|
| 253 km | Obra | 9%
|
| 186 km | Drawa | 8%
|
| 169 km | Pasłęka | 7%
|
| 170 km | Poprad | 7%
|
| 168 km | Rega | 7%
|
| 151 km | Wierzyca | 4%
|