(Photo credit: Sam Navarro-Imagn Images)

Kyle Stowers and Owen Caissie hit two-out homers in a six-run fourth inning, Otto Lopez had two hits and two RBIs, and the Miami Marlins beat the Arizona Diamondbacks 8-0 to extend their winning streak to four games.Lopez improved his major league-leading batting average to .342 with his fourth straight multiple-hit game. He leads the majors with 91 hits and 28 multi-hit games.Liam Hicks and Herbert Hernandez had two hits and scored twice for the Marlins, who have won seven of eight and won their third straight series. They have outscored the D-backs 18-6 in the first two games of this series.Gabriel Moreno had two of the D-Backs' six hits.The D-Backs have lost four of five and nine of 12.William Kempner (1-0), the third of four Marlins' pitchers, struck out three in two innings for his first major league victory.Miami starter Ryan Gusto gave up three hits in four scoreless innings before leaving with a 7-0 lead. He struck out four and walked one in his fourth appearance of the season.Arizona's Ryne Nelson (2-5) gave up seven runs on eight hits including two homers in four innings. He hit two, struck out two and walked one. He has given up 17 homers this season, tied for the second-most in the majors.The Marlies opened the scoring in the third, when.Hicks tripled with two outs in and scored Lopez's first single for a 1-0 lead.The Marlins scored all six of their runs in the fourth with two outs. Hernandez singled to open the inning and Nelson got the next two out before Caissie lined a 370-foot homer to right.Javier Sanoja singled and Hicks was hit by a pitch before Lopez singled in Sanoja. Stowers capped the rally with a 425-foot homer into the upper deck in right field for a 7-0 lead. Caissie's sacrifice fly in the fifth made it 8-0.The D-Backs had their best scoring chance in the sixth, when they loaded the bases with one out. Lake Bachar got out of the inning on a fly out and strike out.--Field Level Media