(Baltimore, MD)  --  The Seattle Mariners remain atop the AL West, despite a 5-2 loss to Baltimore.  Former Mariner Chris Tillman allowed two runs on four hits for the Orioles yesterday to pick up his fifth straight win.  Seattle Starter Taijuan Walker had his third loss of the year, allowing four runs on five hits.  The Mariners and Orioles will wrap up their three-game series later today.