Jose Altuve and Jeremy Peña homered as the Houston Astros improved to 7-0 in games started by Yusei Kikuchi by beating the scuffling Arizona Diamondbacks 11-5. Altuve had three hits and scored three times. Peña’s 15th homer was a three-run shot, capping a five-run sixth inning that started with the AL West leaders clinging to a one-run lead. Arizona, which holds the second National League wild card, has dropped three straight and seven of 10. Kikuchi allowed four runs and seven hits over six innings. He struck out six, giving him a career-high 183 strikeouts this season.