Jeremy Pena finished 4-for-4 with a tie-breaking single in the eighth inning to help the host Houston Astros claim a 4-3 victory over the Kansas City Royals in the rubber match of the three-game series on Wednesday.Pena snapped a 3-3 tie with his single to left off Royals closer Carlos Estevez, driving home Mauricio Dubon. Dubon’s double scored pinch runner Chas McCormick from first base and chased Royals right-hander Michael Lorenzen (3-4). Dubon went 2-for-3 with a pair of doubles.Astros closer Josh Hader earned his 10th save by working around a two-out walk to Bobby Witt Jr. Left-hander Bryan King (1-0) earned the win in relief.The Royals took a 2-0 lead in the second inning against Astros left-hander Colton Gordon, who was making his major league debut. Maikel Garcia blasted a leadoff home run to left for his fifth homer, before the Royals strung together three consecutive two-out hits, with Jonathan India plating Hunter Renfroe with a double to left.Lorenzen produced an efficient outing until the Astros rallied in the eighth.