HANOVER, N.H.Dustin Shirley and Michael Ketchmark each had three hits and drove in a pair of runs, and Nate Ostmo produced three RBIs as Dartmouth (19-12) defeated Boston College (12-22), 8-3, on Tuesday afternoon at Red Rolfe Field at Biondi Park. Each of the three knocked in at least one run in the bottom of the sixth as eight straight Big Green batters reached base — all with two outs — to score five runs and blow open a one-run game.

Leading 3-2 in the bottom of the sixth, Dartmouth had its first two hitters in the inning retired quickly by reliever Jake Alu, who began the game as the Eagles’ second baseman. But Alu’s control got shaky as he walked Trevor Johnson and hit Matt Feinstein before Shirley poked a single through the right side. Right fielder Donovan Casey fired a strike to the plate in plenty of time to nail Johnson, but the rookie danced around the catcher and dove back to the plate, beating the tag to make it a 4-2 Big Green lead.

That play opened the floodgates as Ketchmark followed with a low liner to left that was directly in line with the setting sun, causing the left fielder to miss the ball, allowing two runs to score on the double. A Kyle Holbrook line drive to center brought Ketchmark home, and Alu plunked the next two hitters before being sent back to his previous position at second base. The first baseman, Mitch Bigras, was brought on to pitch, and after getting ahead with two strikes, he hit Ostmo with a pitch to force in what turned out to be the final Dartmouth run.

Boston College did threaten to get back in the game in the eighth after two were out with a man on first. Johnny Adams and Anthony Maselli both stroked singles to plate a run, and Brian Dempsey also singled to load the bases. Right-hander Austen Michel was able to finish off the inning by inducing a foul pop to first, and lefty Marc Bachman retired the side in order in the ninth to close out the Big Green’s first victory over BC since a 2-1 triumph three years ago.

Dartmouth never trailed in the game, plating the first two runs in its half of the second when Ostmo fouled off four pitches with two strikes before lacing a triple to left-center that scored Ketchmark and Justin Fowler, both of whom had singled.

The Eagles responded with a two-out RBI double off the bat of Gian Martellini in the third, closing the book on Big Green starter Clay Chatham. The junior right-hander tossed 2.2 innings and surrendered the one run on three hits and two walks while fanning one. Patrick Peterson came on and got a called third strike to punch out the only batter he faced and preserve the early one-run lead.

In the bottom of the third, Feinstein singled with one down, took second on a wild pitch by BC hurler Jack Nelson and scored on a Shirley double to the fence in right-center. Dartmouth could have added more to its lead, but Shirley was picked off second before Ketchmark roped a single on the very next pitch.

A two-out error in the BC half of the fourth allowed Adams to score after he had doubled and stolen third. But that was all senior Jackson Bubala (1-4) yielded in 2.2 innings of work as he gave up three hits and a walk while striking out four. The righty departed with a man on and two out in the sixth, leaving Michel to get the final out on a routine fly to center and strand the runner at second.

Dartmouth banged out a dozen hits, walked five times and was hit four more — all four in the fateful sixth, two shy of the NCAA record — in scoring its eight runs.

Nelson (3-1) was stuck with the loss for allowing three runs on seven hits in his three-inning start.

Next up for Dartmouth is a big Ivy League series at Yale this weekend. The Bulldogs lead the Big Green in the Rolfe Division standings by two games, so the outcome of the noon doubleheaders on Saturday and Sunday will have a significant impact on which team will represent the division in the Ivy League Championship Series on May 6-7.

Notes: With Holbrook’s two walks and RBI single, he has now reached base in 23 consecutive games, the longest such streak by a Dartmouth hitter since Jim Wren ’10 had a streak of 27 contests in 2009 ... the win for Bubala was his first since April 4, 2015 in an 8-5 victory over Cornell ... Feinstein had two hits in the game and leads the Big Green with 15 multi-hit games this season. Dartmouth is now 30-39 all-time against Boston College on the diamond in a series that dates back to 1886.