| Długość | Rzeka | % Poprawnych |
|---|---|---|
| 1047 km | Wisła | 100%
|
| 808 km | Warta | 89%
|
| 448 km | Narew | 83%
|
| 391 km | Noteć | 66%
|
| 166 km | Bzura | 61%
|
| 120 km | Krzna | 27%
|
| 186 km | Drawa | 26%
|
| 126 km | Kwisa | 21%
|
| 102 km | Biała | 20%
|
| 114 km | Skrwa | 20%
|
| 118 km | Wełna | 17%
|
| 114 km | Tanew | 11%
|
| 142 km | Orzyc | 10%
|
| 102 km | Netta | 5%
|
| 103 km | Szkwa | 1%
|