WINTER HAVEN, Fla. — Senior Chad Piersma singled, doubled and drove in three runs to lead Dartmouth to a 10-2 victory over Vassar at Chain of Lakes Stadium in the RussMatt Invitational on Tuesday afternoon. The win extends the Big Green’s winning streak to eight to start the 2013 season, matching the school record set 110 years ago in 1903 and keeping Dartmouth (8-0) as the only undefeated team in Division I.

Sophomore left-hander Adam Frank (1-0) picked up the win by allowing two earned runs on two hits and five walks over five-plus innings in his first action of the season. Freshman Michael Danielak finished up the final four frames without surrendering a single hit to earn his first collegiate save.

The Big Green roughed up Vassar starter Nick Johnson (0-1) for four runs in the second. Sophomore Jay Graham led off with a double down the right-field line in his first official collegiate at-bat. One out later, sophomore Bo Patterson walked and the pair advanced one base on a wild pitch before Piersma delivered a ringing two-run double to right-center. Another wild pitch sent Piersma to third, and he scored on a single by junior Shane Ogren making the first start of his career. Ogren promptly stole second and sophomore Matt Parisi walked to put runners at first and second. The third wild pitch of the inning allowed them to move up, then Ogren scored on a grounder to short off the bat of freshman Nick Ruppert.

Vassar got two of those runs back in the third with the aid of just one hit — a bunt single by Kyle Casey to start the inning. A hit batter, fly ball to send Casey scurrying to third and a stolen base put men at second and third with one down when a grounder to first slipped through for an error allowing both runners to score.

In the bottom half of the fourth, Dartmouth knocked Johnson from the box as Patterson singled, stole second and scored on a Piersma single to center. After a foul pop behind the plate, Parisi reached second on a dropped fly. Jonathan Hong was summoned from the bullpen and Ruppert greeted him by lofting a sacrifice fly to center. Parisi scored when senior Ennis Coble legged out an infield hit. Freshman Joe Purritano brought home Coble, who stole second, with a single he pulled to right for an 8-2 lead.

The Big Green tacked on two more runs in the eighth on an RBI double by Coble to score Ogren, who walked leading off, and a grounder to first to plate Ruppert.

Vassar stranded a runner at third in the fourth, then never got a man past first base the rest of the game.

While Piersma was going 2-for-4 with two runs and three RBIs, Coble had two hits and drove in two. Graham and Patterson also had two hits, while Ruppert and Purritano each had two RBIs.

Dartmouth will attempt to improve to 9-0 on Wednesday at 11 a.m. when it goes up against Slippery Rock (12-4), which was ranked in the Division II top 25 polls last week, at Lake Myrtle Park in Auburndale, Fla. Vassar returns home to Poughkeepsie to start Liberty League play with a doubleheader against Clarkson University on Saturday at 1 p.m.