2024 Categoría Primera B season

The 2024 Categoría Primera B season (officially known as the 2024 Torneo BetPlay Dimayor season for sponsorship reasons) is the 35th season of the Categoría Primera B since its founding as Colombia's second division football league. The season began on 2 February and is scheduled to end on 18 December 2024.

Teams
16 teams take part in the season. The previous season's champions Patriotas and runners-up Fortaleza were promoted to Primera A for the 2024 season, being replaced in Primera B for this season by Unión Magdalena and Atlético Huila, who were relegated from Primera A at the end of the 2023 season after finishing in the bottom two places of the top tier's relegation table.

On 12 December 2023 the General Assembly of DIMAYOR approved a request from Cortuluá to change their home stadium for this season, moving to Palmira after one season in Yumbo, Valle del Cauca Department. On 10 January 2024, Cortuluá was rebranded as Internacional F.C. de Palmira. In addition to this, starting from this season Real Soacha Cundinamarca left Soacha and was rebranded to Real Cundinamarca, temporarily moving to Bogotá and playing its home matches at Parque Estadio Olaya Herrera.

Semi-finals
The eight teams that advanced to the semi-finals were drawn into two groups of four teams, with the top two teams from the first stage being seeded in each group. The two group winners advanced to the finals.

Finals
Tied 2–2 on aggregate, Llaneros won on penalties.

Top scorers
Source: Soccerway