Así marcha la carrera por el ascenso: dos equipos conseguirán boletos a primera, mientras que el de peor coeficiente de rendimiento, desciende. Mira la tabla 2020 aquí.
Tabla de Posiciones Campeonato Nacional Primera B 2020
| Pos | Club | Pts | G | PJ | E | P | GF | GC | DG |
|---|---|---|---|---|---|---|---|---|---|
| 1 |  Ñublense | 50 | 15 | 28 | 5 | 8 | 51 | 33 | 18 |
| 2 |  Unión San Felipe | 46 | 12 | 28 | 10 | 6 | 37 | 25 | 12 |
| 3 |  Rangers | 45 | 12 | 28 | 9 | 7 | 43 | 39 | 4 |
| 4 |  Deportes Puerto Montt | 42 | 11 | 28 | 9 | 8 | 36 | 28 | 8 |
| 5 |  Deportes Melipilla | 42 | 11 | 28 | 9 | 8 | 30 | 23 | 7 |
| 6 |  Deportes Temuco | 41 | 11 | 28 | 8 | 9 | 35 | 34 | 1 |
| 7 |  San Marcos de Arica | 41 | 12 | 28 | 5 | 11 | 27 | 29 | -2 |
| 8 |  Magallanes | 40 | 9 | 28 | 13 | 6 | 31 | 25 | 6 |
| 9 |  Deportes Copiapó | 39 | 10 | 28 | 9 | 9 | 48 | 46 | 2 |
| 10 |  Cobreloa | 36 | 9 | 28 | 9 | 10 | 37 | 33 | 4 |
| 11 |  San Luis de Quillota | 33 | 8 | 28 | 9 | 11 | 31 | 35 | -4 |
| 12 |  Santiago Morning | 31 | 7 | 28 | 10 | 11 | 29 | 39 | -10 |
| 13 |  A.C. Barnechea | 30 | 7 | 28 | 9 | 12 | 39 | 45 | -6 |
| 14 |  Deportes Valdivia | 28 | 6 | 28 | 10 | 12 | 34 | 48 | -14 |
| 15 |  Deportes Santa Cruz | 22 | 6 | 28 | 4 | 18 | 28 | 54 | -26 |
