Cobreloa and Santiago Wanderers sit at the top of the Liga de Ascenso table after roughly 20 matches, separated by just one or two points, which has anchored trader consensus around them as the most probable runner-up candidates in the 2026 Primera B season. Their strong recent form, superior goal differences, and consistent results against mid-table sides have kept both sides ahead of the pack, while a cluster of teams including Antofagasta, San Marcos de Arica, Puerto Montt, Magallanes, and San Luis remain within striking distance on points. This narrow margin between the leaders and the chasing group, combined with a long schedule ahead and typical variability in form and injuries, sustains the tight implied probabilities reflected in current market pricing.