SEATTLE — Starling Marte got the Pirates started with a triple — and it only got better after that.
Marte hit two of Pittsburgh's five home runs and Jeff Locke pitched seven sharp innings to lead the Pirates past the Seattle Mariners 9-4 on Tuesday night for their fifth straight victory.
Marte opened the game with a triple and hit solo shots in the second and eighth for the first multihomer game of his career.
"We had some power jump out there tonight," Pittsburgh manager Clint Hurdle said.
Pittsburgh (47-30) moved 17 games over .500 for the first time since the end of 1992, its last winning season. The Pirates peaked at 62-46 last year before fading to a 17-37 finish.
Locke (7-1) limited Seattle to two runs and four hits, leaving him tied for second in the National League with a 2.06 ERA. He struck out four and walked two.
"Probably had the lightest stuff he's had all season. But at the end of the day, looking at his numbers, he still found a way to keep the game in check," Hurdle said.
Brandon Inge hit a three-run shot in the second inning, his first home run since last August. Russell Martin and Gaby Sanchez also went deep for the Pirates in their first five-homer game since July 22, 2009, against Milwaukee.