Match details. Primera B, Regular Season - 27. Kick-off is Sun 11 Oct, 16:30 Lagos time. It is played at Estadio Regional de Antofagasta.
What's at stake. CD Antofagasta are 5th on 41 points after 26 games, 3 points behind Santiago Wanderers, level on points with Recoleta. A win would take them level on points with Santiago Wanderers. San Marcos de Arica are 7th on 39 points after 26 games, 2 points behind Recoleta, 2 points clear of Deportes Copiapo. A win would take them above Recoleta.
Form. CD Antofagasta have won five, drawn three and lost two of their last ten, 1.8 points a game. Their last five, newest first: W L D L W. In this competition CD Antofagasta have gone W L D L W W. San Marcos de Arica have won three, drawn two and lost five of their last ten, 1.1 points a game. Their last five, newest first: W W L W L. In this competition San Marcos de Arica have gone W W L W L L.
The numbers. CD Antofagasta score 1.8 and concede 0.7 a game in their last six at home, with three clean sheets and two games without a goal. San Marcos de Arica score one and concede 1.6 a game in their last five away, with no clean sheets.
Head to head. In the last seven meetings CD Antofagasta have won two, drawn three and lost two. Four of the seven went over 2.5 goals and both teams scored in six. In the last four, three were drawn and San Marcos de Arica won one. The last time they met, on 17 May 2026, it finished CD Antofagasta 1-1 San Marcos de Arica.
The case against. San Marcos de Arica's record still gives them 24% to win.
The read. CD Antofagasta to win. An open game. Their goals for and against make CD Antofagasta the likelier winners; CD Antofagasta are the stronger side on form and the table. Their goals for and against point to an open game. Their records put over 2.5 goals at 55%. Four of the last seven meetings went over 2.5.
The bets. Best bet: CD Antofagasta or Draw at 1.23, 73% on the records (CD Antofagasta unbeaten in 5 of 6 at home; San Marcos de Arica failed to win 4 of 5 away). Backup: CD Antofagasta or Both Teams Score at 1.19. It often rescues the bet, but it is no guarantee. Leave: CD Antofagasta or Under 2.5 Goals (no unders on an open read); San Marcos de Arica Over 0.5 goals (CD Antofagasta's own games don't back it (3 of 6)); Under 4.5 Goals (no unders on an open read). Predicted score: CD Antofagasta 2-1 San Marcos de Arica (9% chance).
Every score's chance from both teams' checked games, never cut or rescaled. The lit square is the likeliest score that fits the read (the call and an open game).