The 1920–21 Prima Categoria season was won by Pro Vercelli.
Regulation
Struggles between minor and major clubs continued, more, they went out of control. The regional FAs expanded the championship to 64 clubs. The preliminary regional phase became the bulk of the tournament, with even sixteen matchdays and regular regional football champions, while the following national phase was reduced to a spring tournament of eight matchdays.
The main tournament was completely divided in five independent sections, and each region had its own football champions. The spots to the national championship were divided according to the agreements between the Regional FAs.
National championship was split in four groups of four clubs. Group winners advanced to the final four. The whole tournament could have twenty-two matchdays.
The experimental Southern groups had their own special regulations.
Teams
Regional FAs agreed to expand the league to 64 clubs. They variously chose to promote, re-elect, or invite clubs to fill the spots they had been granted to.
Rivarolese was demoted by the Federazione Italiana Giuoco Calcio after incidents caused by its supporters during the match Rivarolese-Savona (0-2). Rivarolese's remaining matches were all considered forfeits. The side was readmitted to the championship for the following season.
Updated to match(es) played on unknown. Source: Almanacco Illustrato del Calcio - La Storia 1898-2004, Panini Edizioni, Modena, September 2005 (in Italian) Legend: Blue = home team win; Yellow = draw; Red = away team win. Notes:
^ abcdefghiRivarolese was demoted by the Federazione Italiana Giuoco Calcio after incidents caused by its supporters during the match Rivarolese-Savona (0-2). Rivarolese's rimaining matches were all considered forfeits. The side was readmitted to the championship for the following season.
Updated to match(es) played on unknown. Source: Almanacco Illustrato del Calcio - La Storia 1898-2004, Panini Edizioni, Modena, September 2005 (in Italian) Legend: Blue = home team win; Yellow = draw; Red = away team win. Notes:
Updated to match(es) played on unknown. Source: Almanacco Illustrato del Calcio - La Storia 1898-2004, Panini Edizioni, Modena, September 2005 (in Italian) Legend: Blue = home team win; Yellow = draw; Red = away team win. Notes:
Updated to match(es) played on unknown. Source: Almanacco Illustrato del Calcio - La Storia 1898-2004, Panini Edizioni, Modena, September 2005 (in Italian) Legend: Blue = home team win; Yellow = draw; Red = away team win.
Updated to match(es) played on unknown. Source: Almanacco Illustrato del Calcio - La Storia 1898-2004, Panini Edizioni, Modena, September 2005 (in Italian) Legend: Blue = home team win; Yellow = draw; Red = away team win.
Updated to match(es) played on unknown. Source: Almanacco Illustrato del Calcio - La Storia 1898-2004, Panini Edizioni, Modena, September 2005 (in Italian) Legend: Blue = home team win; Yellow = draw; Red = away team win.
Updated to match(es) played on unknown. Source: Almanacco Illustrato del Calcio - La Storia 1898-2004, Panini Edizioni, Modena, September 2005 (in Italian) Legend: Blue = home team win; Yellow = draw; Red = away team win.
Updated to match(es) played on unknown. Source: Almanacco Illustrato del Calcio - La Storia 1898-2004, Panini Edizioni, Modena, September 2005 (in Italian) Legend: Blue = home team win; Yellow = draw; Red = away team win.
Group F
Classification
Pos
Team
Pld
W
D
L
GF
GA
GD
Pts
Promotion or relegation
1
Trevigliese
6
5
0
1
13
7
+6
10
Qualified
2
Juventus Italia
6
4
0
2
16
9
+7
8
3
Nazionale Lombardia (E)
6
2
0
4
11
20
−9
4
Disbanded
4
Enotria Goliardo (T)
6
1
0
5
12
16
−4
2
Saved
Source: Panini (E) Eliminated; (T) Qualified, but not yet for the particular phase indicated
Updated to match(es) played on unknown. Source: Almanacco Illustrato del Calcio - La Storia 1898-2004, Panini Edizioni, Modena, September 2005 (in Italian) Legend: Blue = home team win; Yellow = draw; Red = away team win.
Updated to match(es) played on unknown. Source: Almanacco Illustrato del Calcio - La Storia 1898-2004, Panini Edizioni, Modena, September 2005 (in Italian) Legend: Blue = home team win; Yellow = draw; Red = away team win. Notes:
Updated to match(es) played on unknown. Source: Almanacco Illustrato del Calcio - La Storia 1898-2004, Panini Edizioni, Modena, September 2005 (in Italian) Legend: Blue = home team win; Yellow = draw; Red = away team win.
Updated to match(es) played on unknown. Source: Almanacco Illustrato del Calcio - La Storia 1898-2004, Panini Edizioni, Modena, September 2005 (in Italian) Legend: Blue = home team win; Yellow = draw; Red = away team win. Notes:
^Dolo-Padova was suspended due to lack of footballs. FIGC decided to confirm the result obtained at the time of the suspension.
Updated to match(es) played on unknown. Source: Almanacco Illustrato del Calcio - La Storia 1898-2004, Panini Edizioni, Modena, September 2005 (in Italian) Legend: Blue = home team win; Yellow = draw; Red = away team win. Notes: