"Aaron Cook gained his 54th victory in a Rockies uniform, leaving him alone in second place for most wins among pitchers in franchise history. He entered Sunday tied with Pedro Astacio. Cook now trails only Jason Jennings, who had 58 career wins with the Rockies. Cook improved to 2-1 this year, whittling his ERA to 5.03. He pitched six innings, allowing two runs (one earned) and four hits. His effective sinker yielded 10 groundball outs. Calling on "Q." Omar Quintanilla made his first start of the season, getting the call at second base. He was the last player on the Rockies' opening-day roster to make a start. Quintanilla went 0-for-3 and had a walk. Still struggling. Garrett Atkins, who hit fifth in the order Sunday, remains in a deep slump. He went 0-for-4 and had a strikeout. His average plummeted to .210."