SEATTLE (AP) — When Jason Vargas talks about being a complete pitcher, he's talking about staying strong for a complete season.
The Seattle lefty stayed on track to meet his goal of having a solid second half, pitching seven solid innings as the Mariners sent the sloppy Boston Red Sox to their season-worst seventh straight loss, 4-1 Monday.
"I feel like the progression I've made has gotten better. The last few years I've struggled after the All-Star break," Vargas said. "That I haven't had as many struggles is definitely a plus. I'm able to keep making adjustments. I've been able to keep myself together."
Over the past three seasons, Vargas is 7-18 with a 5.37 ERA in the season half. This year, he is 6-2 with a 3.28 ERA since the All-Star break.
"You look at how much progress he has made just in the time I've been here," second-year Mariners manager Eric Wedge said. "He was strong in his last five, six starts last year and he brought it into this year."
The Red Sox botched two key plays and fell to 0-7 on their road trip. They've been outscored 58-16 in that span.
"We made the miscues that gave them two runs and that's all she wrote," Boston manager Bobby Valentine said.
Vargas (14-9) allowed one run and six hits, walked no one and struck out five. He is the first Mariners pitcher other than Felix Hernandez to win at least 14 games since 2003.
Vargas, who leads the staff in wins, was coming off two sub-par outings in which he gave up a combined 11 runs and 15 hits in 8 2-3 innings.
Tom Wilhelmsen worked the ninth to pick up his 23rd save in 26 opportunities.
The Mariners have won 10 of their last 12 games at Safeco Field.
Clay Buchholz (11-5) took the loss. He went seven innings, giving up three earned runs, six hits while walking one and striking out eight.
Buchholz and the wobbly Boston defense conspired to undo the Red Sox in the Mariners' four-run fourth inning.