2020 Categoría Primera B season
The 2020 Categoría Primera B season is the 31st season of the Categoría Primera B since its founding as Colombia's second division football league.
On 13 March 2020, after a meeting with its member clubs, DIMAYOR announced the temporary suspension of the tournament, along with the Primera A and Copa Colombia ones, due to the COVID-19 pandemic.
On 29 June, and after an Assembly of its member clubs, DIMAYOR presented a timetable for the implementation of the biosafety protocol to resume its competitions, with COVID-19 testing for players and staff members of every club scheduled to be held from 10 to 15 July, and individual training resuming the following day. The resumption of collective training sessions, scheduled for 20 August, will be subject to government approval. According to said timetable, the league was scheduled to resume on 27 August, pending the fulfillment of the previous stages as well as final approval by the Colombian government. On 25 July, it was confirmed that the competition would resume on 30 August 2020 with alterations in its format, and pending government approval.
Format
For this season, and prior to the COVID-19 pandemic, the format was originally planned to be the same as the previous season: two tournaments with three stages each. In the first stage of both tournaments, the 16 clubs would play each other once, for a total of 15 games. The top eight teams after the first stage would advance to the semifinal round where they would be sorted into two groups of four to play a double round-robin tournament group stage, with the top team of each group qualifying for the finals. The winners of both tournaments would play a final series on a home-and-away basis, with the winner being crowned as season champions and also earning promotion to the Categoría Primera A for the 2021 season. The season runners-up would then play the best team in the aggregate table in another double-legged series for the second promotion berth. In case the season runner-up also ended up as the best team in the aggregate table, it would also be promoted and the promotion play-off would not be played.On 25 July 2020, DIMAYOR's General Assembly decided to continue playing the Torneo I as the only tournament to be held in the season, with the winners of that tournament being crowned as champions and earning automatic promotion to the top flight. The promotion play-off, if needed, would still be played by the runners-up and the best team in the aggregate table other than the champions.
Teams
16 teams are taking part, fourteen of them returning from last season plus Unión Magdalena and Atlético Huila, who were relegated from the Primera A the previous season. Both teams replaced Deportivo Pereira and Boyacá Chicó who earned promotion at the end of the last season.| Club | Home city | Stadium | Capacity |
| Atlético | Cali | Pascual Guerrero | 33,130 |
| Atlético Huila | Neiva | Guillermo Plazas Alcid | 22,000 |
| Barranquilla | Barranquilla | Romelio Martínez | 20,000 |
| Boca Juniors | Cali | Pascual Guerrero | 33,130 |
| Bogotá | Bogotá | Metropolitano de Techo | 8,000 |
| Cortuluá | Tuluá | Doce de Octubre | 16,000 |
| Deportes Quindío | Armenia | Centenario | 20,716 |
| Fortaleza | Cota | Municipal de Cota | 4,000 |
| Leones | Itagüí Envigado | Metropolitano Ciudad de Itagüí Polideportivo Sur | 12,000 14,000 |
| Llaneros | Villavicencio Tunja | Manuel Calle Lombana La Independencia | 15,000 20,630 |
| Orsomarso | Palmira Tuluá | Francisco Rivera Escobar Deportivo Cali Doce de Octubre | 15,300 42,000 16,000 |
| Real Cartagena | Cartagena Magangué | Jaime Morón León Diego de Carvajal | 16,068 10,000 |
| Real San Andrés | San Andrés | Erwin O'Neill | 5,000 |
| Tigres | Bogotá | Metropolitano de Techo | 8,000 |
| Unión Magdalena | Santa Marta | Sierra Nevada | 16,000 |
| Valledupar | Valledupar | Armando Maestre Pavajeau | 11,000 |
First stage
Standings
Results
Top goalscorers
| Rank | Name | Club | Goals |
| 1 |  Diber Cambindo | Deportes Quindío | 5 |
| 2 | Sebastián Acosta | Fortaleza | 4 |
| 2 | César Caicedo | Bogotá | 4 |
| 2 | Exneider Guerrero | Deportes Quindío | 4 |
| 2 | Hernán Luna | Unión Magdalena | 4 |
| 6 | Keiner Angulo | Orsomarso | 3 |
| 6 | Leonel García | Leones | 3 |
| 6 | Denis Mena | Leones | 3 |
| 6 | Éder Munive | Leones | 3 |
| 6 | Guillermo Murillo | Cortuluá | 3 |
| 6 | Luis Narváez | Unión Magdalena | 3 |
| 6 | Danny Santoya | Deportes Quindío | 3 |
Source: