HANOVER, N.H. — Junior Jeff Keller and freshman Joe Purritano both went 3-for-5 with two runs and four RBIs while five pitchers combined on a six-hit shutout to lead Dartmouth to a 12-0 victory over visiting Quinnipiac on Wednesday afternoon at Red Rolfe Field at Biondi Park. It was the largest margin of victory in a shutout for the Big Green since an 18-0 win over Plymouth State on May 5, 2005, and pushed Dartmouth to a season-high 20 games over .500 at 27-7 having won 10 of its last 11 contests.

The Bobcats, meanwhile, suffered their 13th straight defeat to fall to 10-25.

Among Keller’s three hits was his 21st double of the year, breaking the Dartmouth single-season record that was set by Bobby Jones ’89 during his junior year in 1988. Keller also belted a two-run homer and drove in the first run of the game with a sacrifice fly in the first. He now leads the Ivy League with 38 RBIs, surpassing sophomore teammate Nick Lombardi by one, and is second in the league with a .402 batting average.

Purritano fell a home run short of the cycle with a two-run triple and a two-run single as well as a leadoff double in the eighth. Sophomore Matt Parisi also had three hits, including a double, in five trips to the plate, scoring twice and driving in one run. Every Big Green starter had at least one hit in the 16-hit attack.

On the mound, sophomore left-hander Adam Frank (3-0) tossed the first 3.1 innings, surrendering two hits and three walks while striking out three to earn the win in a scheduled short start. He was followed by junior Louis Concato, who hurled the next 2.2 frames, yielding two hits with three punchouts. He did some help from his defense when left fielder Ennis Coble fielded a Vincent Guglietti double down the line and hit the cutoff man, shortstop Trent Goodrich, who relayed to the plate to gun down Dale Long to end the fifth inning.

Junior Mike Dodakian fanned two in his inning of work, and freshman Duncan Robinson erased the leadoff walk he issued by spearing a comebacker and turning the double play. Finishing off the blanking was freshman Beau Sulser, who worked around a pair of singles and an error with the help of a double play as well.

The first Dartmouth run came off starter Kevin Castodio (0-2) — making his first start of the season — in the first inning when Parisi led off with a double, took third on a grounder to second and just beat the throw home on a fly to right off the bat of Keller for a 1-0 Big Green lead.

Castodio kept Dartmouth off the scoreboard for the next three innings, but the floodgates opened in the fifth with two outs and nobody on base. Coble dropped a single into left field, then promptly stole his seventh base of the season. Keller followed by crushing a 1-1 pitch over the fence in left for his fifth long ball of the season. The hits kept coming as Selzer pulled a ball just inside third base for a double, Lombardi singled him to third and Purritano brought home both runners with a line drive into the gap in left-center for a triple. After Goodrich walked, a wild pitch allowed Purritano to score, and senior Chad Piersma delivered a long double to deep right-center for a 7-0 lead and ending Castodio’s afternoon.

In the sixth, the Big Green loaded the bases on a Keller single sandwiched between two hit batters. With two down, Purritano slapped a ball between short and third for a two-run single.

Keller hit his record-breaking double in the seventh to plate Parisi, who had walked. The final two runs came home in the eighth on a Parisi RBI single that brought home Purritano after he had doubled, and a fielder’s choice off the bat of junior Ryan Toimil to bring home junior Shane Ogren, who had singled.

Dartmouth will conclude its Ivy League season this weekend needing one win to clinch its sixth straight Rolfe Division title to advance to the Ivy Championship Series. The Big Green (11-5 in the Ivy League) will host Harvard (10-26, 7-9 Ivy) on Saturday for a doubleheader at 1 p.m. while honoring its five seniors — Coble, Kyle Hunter, Michael Johnson, Piersma and Cole Sulser — before the game. On Sunday, Dartmouth will travel to Cambridge, Mass., to play another 1 p.m. doubleheader against the Crimson. Quinnipiac gets back into NEC play with a four-game home series against Wagner that begins on Friday afternoon at 3 p.m.

Notes: The Big Green have shut out the opposition eight times this year, the second-most shutouts in a season in the program’s 141 seasons. Only the 1975 squad, featuring future major league pitcher Jim Beattie, had more with 10 ... Dartmouth also lowered its team ERA to 2.60 for the season, which would be the lowest for the Big Green pitching staff in 42 years ... Keller, who is one double shy of the Ivy League single-season record of 22, is currently tied for second in the country with those 21 doubles, trailing only Stephen F. Austin’s Hunter Dozier who hit his 22nd double on Tuesday ... Keller also raised his slugging percentage, which was already seventh in the country at .750, to .778.