With the way Bartolo Colon was dominating on the mound, all the Oakland Athletics needed was the early run they scored off Yu Darvish. Now they just about have a stranglehold on the AL West after beating the Texas Rangers twice in less than 24 hours. Colon scattered seven hits over eight scoreless innings and the division-leading A's won 1-0 Saturday, stretching their division lead over Texas to 5 1/2 games with two weeks left in the regular season.