Universidad de Chile leads early clean-sheet tallies with nine through 20 matches and the league’s stingiest defense (15 goals conceded), yet Colo-Colo’s superior overall form, attacking output, and seven shutouts keep the two clubs level in implied probability. Mid-table sides including Ñublense, Audax Italiano, and Deportes Concepción each sit on seven clean sheets, while Everton and Palestino remain within striking distance on five. With roughly half the campaign remaining, fixture congestion, potential goalkeeper rotations, and shifting defensive organizations continue to compress outcomes, leaving traders assigning nearly identical probabilities across more than a dozen clubs.