SEATTLE — One month was all the Houston Astros needed to erase a 10-game deficit and reclaim their spot atop the AL West.
Hunter Brown worked around trouble while allowing four hits in six innings, Yainer Diaz delivered the big blow with a two-run single and the Astros moved into a tie for first place in the AL West with a 3-0 victory over the Seattle Mariners on Friday night.
''We have clawed our way through a very difficult stretch early in the season and find ourselves tied in first place — just proud of that group," Houston manager Joe Espada said. "They have never stopped fighting. They never stopped believing. And this is far from over but just to find ourselves in this position, it feels great.''
The Astros (51-46) trailed Seattle by 10 games and were seven games under .500 on June 18, but have surged over the past 24 games. Houston improved to 18-6 over the last 31 days and used one big inning against Seattle starter Luis Castillo to complete the climb.
Since holding that 10-game lead, the Mariners (52-47) have stumbled to an 8-16 mark, including a lifeless effort against their division rival coming out of the All-Star break that led to boos from the home fans after the final out.
Seattle's offense again remained the problem. Brown (8-6) labored through the first two innings, but came up with key pitches when needed. He got Cal Raleigh to line out with the bases loaded and two outs in the third inning, and induced a double play from Josh Rojas to end the fifth after the first two batters reached.
The Mariners have lost four straight and scored three runs or less for the 15th time in the past 24 games.
''Our group understands where we're at. Offense has been a struggle for us, trying different things to unlock it and get it going. Just not happening right now,'' Seattle manager Scott Servais said.