The Dartmouth College men's hockey team, the lone unbeaten team in Division I, made a significant jump to No. 12 in national polls released on Monday.

The Big Green (5-0-1) defeated Rensselaer and No. 8 Union over the weekend and moved to 12th in both the U.S. College Hockey Online poll and The USA Today/USA Hockey Magazine Poll.

Dartmouth (4-0-0 ECAC), which gained nine spots in the USCHO.com poll, is now ranked for the first time since early November of last year. The No. 12 position is the highest showing for the Big Green since holding down the same spot in October 2004.

Boston College received all 50 first-place votes in the USCHO.com poll announced on Monday.

The University of New Hampshire, which remained undefeated at home with a 4-0 triumph against Vermont, took over the No. 5 spot in the USCHO.com poll.

The Wildcats (6-1-1), who haven't allowed a goal in two straight games, are ranked sixth The USA Today/USA Hockey Magazine Poll.

Field hockey

Plymouth State University erased a two-goal deficit in the second half and defeated top-seeded Bridgewater State University, 4-3, in overtime to capture the 2012 ECAC Division III New England Field Hockey Tournament championship on Sunday afternoon. Senior forward Olivia Colborn of Lancaster scored the game-winning goal and garnered Most Outstanding Player honors in the tournament at Bridgewater, Mass.

Colborn also tallied a pair of goals in the Panthers' 2-1 semifinal victory over Keene State College on Saturday.