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The Pittsburgh Pirates defeated the Houston Astros 5-1 on June 4 at Daikin Park, with the visitors' pitching staff delivering a dominant performance that limited the home team to just one earned run on eight hits while striking out seven. Pittsburgh's offense generated nine hits and four RBIs, enough to overcome the Astros' modest output of eight hits and one RBI, as Houston's .730 OPS fell short of the Pirates' .744. The Astros' pitching proved problematic, allowing four earned runs and posting a 5.03 ERA, while Houston also committed an error that contributed to the offensive struggles. Pittsburgh's ERA of 4.00 and two-walk performance demonstrated superior pitch control compared to Houston's three walks allowed. The decisive margin reflects a stark contrast in run efficiency: despite nearly identical hit totals, the Pirates converted their opportunities far more effectively. This result suggests Houston's rotation depth may need addressing heading into the division stretch.