| Season | 2020 |
|---|---|
| Dates | 22 February 2020 – 7 February 2021 |
| Champions | Ñublense (2nd title) |
| Promoted | Ñublense Deportes Melipilla |
| Relegated | Deportes Valdivia |
| Matches played | 218 |
| Goals scored | 543 (2.49 per match) |
| Top goalscorer | Gonzalo Sosa (17 goals) |
| Biggest home win | Cobreloa 6–0 Dep. Valdivia (6 January 2021) Barnechea 7–1 Rangers (17 January 2021) |
| Biggest away win | S. Morning 0–4 U. San Felipe (20 September 2020) Dep. Valdivia 0–4 Dep. Temuco (22 December 2020) |
| Highest scoring | Magallanes 5–5 Rangers (23 September 2020) |
← 2019 2021 → | |
The 2020 Primera B de Chile, also known as Campeonato Juegaenlinea.com 2020, was the 66th season of the Primera B de Chile, Chile's second-tier football league. The competition began on 22 February 2020 and ended on 7 February 2021. Ñublense were the champions, winning their second Primera B title and earning promotion to the Chilean Primera División for the following season.
The competition was suspended from 18 March to 29 August 2020 due to the COVID-19 pandemic.