PITTSBURGH

There used to be a time — any year really between 1993- 2012 — when reaching 81 wins would be cause for celebration for the Pittsburgh Pirates.

Not anymore. These days the certainty of a non-losing season is nothing more than a speed bump on Pittsburgh’s resilient quest for a playoff berth.

Gregory Polanco, Neil Walker and Ike Davis all homered and the Pirates beat the Boston Red Sox 9-1 on Wednesday night to maintain their grip on the second National League wild card spot.

Polanco and Walker hit solo shots off Boston starter Clay Buchholz (8-9) and Davis drilled a three-run blast to center off reliever Steven Wright. The Pirates have won 10 of 12 and improved to a season high 11 games over .500 (81-70). Pittsburgh moved 2.5 games clear of Milwaukee in its race for a second straight postseason bid after the Brewers fell to St. Louis.

Francisco Liriano (6-10) won his third straight decision, allowing one run in six innings. The left-hander worked out of a bases-loaded jam in the first inning and has now given up two runs or less in 11 of his 12 starts since the All-Star break, looking like the pitcher who won 16 games in 2013 than the one that struggled with his command and his health during a rocky first half to 2014.

Boston rookie centerfielder Rusney Castillo went 1 for 4 in his major league debut. The Cuban defector signed a seven-year, $72.5 million deal with the Red Sox last month. Boston has lost three of four.

Castillo’s arrival in the Red Sox clubhouse on Wednesday afternoon ended a quick tour of the team’s minor league system. He made stops at three different levels before coming up to Boston to stay.

While manager John Farrell stressed the final games of an otherwise lost season are simply a chance for Castillo to “get acclimated” to life in the big leagues, the 27-year-old believes it won’t take long for him to get up to speed. He provided a brief glimpse of what’s to come in the fourth when he ripped a sharp grounder to second that Walker couldn’t handle for his first major league hit.

“I’ll sign it and keep it in my house somewhere,” Castillo said with a smile.

• Who: Boston Red Sox
at Pittsburgh Pirates.
• Where: PNC Park.
• When: 7:05 p.m.
tonight.
• Starting pitchers:
Boston (Brandon Workman 1-9) vs. Pittsburgh
(Gerrit Cole 9-5).
• TV: NESN.