For the third time this season, Union had another bad first period.
Unlike the previous two times, the Dutchmen weren't able to erase the deficit. Going 0-for-11 on the power play didn't help, either.
The Dutchmen fell behind, 3-0, in the first period against Dartmouth, got to within one after two, but couldn't get the tying goal and dropped a 5-2 decision in their ECAC Hockey opener Friday at Messa Rink.
The loss snapped Union's five-game unbeaten streak (2-0-3) against Dartmouth at Messa.