The Padres flip-flopped the 34-year-old Marquis and Eric Stults in their rotation late in spring training because Stults had success at Citi Field last season while Marquis has always pitched well at Coors Field. Stults held up his end of the experiment. In 140 1/3 innings at Coors Field, Marquis has allowed only 137 hits and seven home runs. Marquis was 1-1 against the Rockies last year with a 6.55 ERA in two starts. Ahh, in one start at Coors Field, he allowed six runs (five earned) on six hits in six innings.