A leadoff single by Victor Martinez in the fifth inning was the only offense the Tigers could muster off Jeff Samardzija (10-13) as the Chicago White Sox took the measure of Detroit in a 2-0 win.
Samardzija's one-hitter - his second complete game shutout of the season - came in the opener of a split double-header, Chicago prevailing in the nightcap, 3-2, sending the Tigers deeper into the basement of the AL Central, three games behind the Sox and 18 1/2 back of the division-leading Royals.
Around the plate all game long, Samaardzija needed just 88 pitches for the win, throwing 60 for strikes, walking none and fanning six.
With a 9-3 win at Colorado, the Pittsburgh Pirates held their position, four game behind the Cardinals in the NL Central and two games ahead of Chicago in the wild card race.
Starling Marte and Jordy Mercer each went 4-for-5 with two runs and two RBI, Mercer doubling twice with two singles. Marte had a solo homer, double and two singles.
Pittsburgh's win was their third straight and the opener in a four-game series with the Rockies. Both the Cardinals and Cubs were winners Monday, keeping the order in the NL the same as the previous day, only with one less game remaining in the regular season.
St. Louis has already been assured a playoff spot. The Pirates and Cubs will likely secure a place in the post-season this week, though the exact order of finish will determine participants and home field for the wild card playoff game and division winner.
Pittsburgh hopes to continue their win streak when they meet the Rockies on Tuesday for the second of their four-game set. Game time is 8:40 pm EDT.