With one glaring exception — 10 runs and 10 hits in five innings of a 10-8 loss to the Astros on Aug. 20 — righty Germán Márquez (2-5, 4.35 ERA) has been pitching well. He’ll be on the Coors Field mound Wednesday when the Rockies finish a two-game series vs. the A’s. The 1:10 p.m. MT game is available on MLB.TV. Márquez started at Oakland on July 29, when he yielded one run on four hits in six innings. Righty Mike Fiers (5-2, 5.06 ERA) will start for the A’s.