Adam Shemansky scored twice in Maine's upset of No. 10 Vermont

The marquee series of the weekend did not disappoint, as the teams favored to finish atop Hockey East this season - No. 4 Boston University and No. 9 UMass Lowell - both battled to road victories against each other. On Friday, BU sophomore defenseman David Warsofsky scored twice (including once on the penalty kill) and had a plus-3 rating to lead the Terriers, and junior blueliner Colby Cohen - who scored the overtime game-winner in last season's NCAA title game - came through with an OT goal to give BU a 5-4 win in front of 5,496 fans. The River Hawks struck back the next night in a 3-2 decision in Boston. Senior forward Paul Worthington had two assists for UML.

The Ivy League schools finally began their 2009-10 campaigns over this weekend - meaning that all 58 Division I teams have now played regular-season games. Two of the Ivies hooked up in a big early matchup on Saturday, and seventh-ranked Yale scored four times in the third to rally from a 2-1 deficit for a 5-2 victory on the road against No. 11 Princeton. Junior forward Denny Kearney had three assists and junior defenseman Mike Matczak finished with a plus-4 rating to lead the Bulldogs.

Top-ranked Miami continued to roll with a road sweep against Northern Michigan. The RedHawks scored the game's first four goals - including two tallies in 41 seconds by junior forward Justin Vaive - and held on for a 4-3 triumph on Friday. Sophomore goaltender Cody Reichard, now 5-0-1 on the season, then made 24 saves the following night to lead MU to a 2-1 win.

No. 2 Denver had to settle for three points in its home series with Minnesota State. The Pioneers got two goals and an assist from junior forward Jesse Martin in a 4-3 win on Friday. The next night, freshman forward Tyler Pitlick had a pair of goals for the Mavericks, and DU needed a late tally from junior forward Kyle Ostrow to earn a 4-4 draw. Both games drew crowds of greater than 5,300 fans.

The biggest upset of the weekend occurred on Friday in Orono, as Maine - which came into the game with a 1-5-0 record - posted a 4-1 home victory against 10th-ranked Vermont. The Black Bears scored three times on the power play - including two goals from freshman forward Adam Shemansky - and also got 31 saves from sophomore Scott Darling. The Catamounts took all three meetings with Maine last season.

Three ranked teams - No. 13 Boston College, 17th-ranked Massachusetts and No. 18 Quinnipiac - earned multiple-goal victories on Friday, but then were knocked off in the second game of the series. BC doubled Merrimack's shot toal (36-18) on Friday in a 4-3 win in its home opener, but the Warriors would strike back on home ice in a 5-3 decision. It ended a 20-game winless streak (0-16-4) against the Eagles for Merrimack - which beat BC for the first time since Feb. 15, 2003, and stands 5-0 at home this season. Merrimack junior forward Chris Barton scored his seventh goal of the season on Saturday - which puts him in a tie (with Justin Fontaine of Minnesota Duluth and Michigan State's Corey Tropp) for tops among DI players.

UMass got goals from five different players in a 5-3 road victory over Providence on Friday that gave the Minutemen their first 4-0-0 start in six years. But sophomore goaltender Alex Beaudry stole the series finale for the Friars, making a career-high 47 saves in PC's 2-1 win that saw UMass hold a 48-28 shot edge. It was the second win over a ranked team already this season for the Friars, who split a series at Notre Dame last month.

Quinnipiac dominated Robert Morris on Friday, as freshman goaltender Eric Hartzell led the Bobcats to a 5-0 victory. It would be a different story for the Colonials the next night, though, as Robert Morris got a school-record four goals from junior forward Nathan Longpre - as well as a program-record 58 saves from freshman goaltender Eric Levine in an 8-5 upset win. Quinnipiac outshot RMU 105-53 in the series, but could manage just a split.

Eighth-ranked Notre Dame and No. 12 Nebraska-Omaha both had to settle for a win and a tie in CCHA series. The Irish topped Ohio State 3-1 on Friday before tying 2-2 the next night. The Mavericks tied Bowling Green, 3-3, on Friday and won 3-1 over the Falcons the next night.

No. 14 Bemidji State came home with a road sweep to remain unbeaten (5-0-1), but it wasn't easy. The Beavers took a pair of 2-1 overtime decisions against Alabama-Huntsville. Junior forward Matt Read had three of BSU's four goals.

Pat Cannone and Connor Knapp helped Miami to a 2-0 start

The first weekend of the regular season featured plenty of surprises and upsets. Of the 20 teams listed in the preseason USCHO/CBS College Sports rankings, 13 of them were in meaningful action over the weekend - and just two of those squads (No. 4 Miami and No. 6 North Dakota) would escape without tasting defeat. The teams in the lower portion of the rankings, in particular, struggled - as the bottom seven teams (ranked Nos. 14-20) combined for a 3-10-0 record, including 2-7-0 against unranked opponents.

Miami - which was the top-ranked team in the preseason USA Today/USA Hockey poll after barely falling short in last year's NCAA championship game - had one of the most-impressive weekends of any team, as the RedHawks earned a home sweep of 15th-ranked St. Cloud State. Junior All-America forward Carter Camper scored the game-winner in overtime in a 3-2 victory on Friday. The following night, it was sophomore Connor Knapp earning a shutout while junior forward Andy Miele had the primary assist on both of Miami's goals - scored 20 seconds apart early in the third in the 2-0 game.

The other marquee series of the weekend pitted No. 1 Denver against 14th-ranked Vermont, a Frozen Four participant last season. The offenses were in high gear, and the weekend ended in a split. UVM appeared to be on its way to spoiling the first game of DU's 60th anniversary season, holding a 4-2 lead after two periods on Friday. But the Pioneers got a quick power play goal and then saw sophomore forward Joe Colborne net two more - one on the power play and then the even-strength game-winner with just over two minutes remaining in regulation - to give DU a 5-4 triumph. Vermont would not make the same mistake on Saturday, as senior forward Brayden Irwin scored twice in leading the Catamounts to a 6-4 win.

No. 6 North Dakota dominated Merrimack en route to a home sweep (5-2 and 3-2). The Fighting Sioux outshot the Warriors by a 75-35 margin, and freshman Mike Cichy had an outstanding first collegiate weekend with a goal, two assists and a +4 rating. Both games drew more than 11,000 fans.

The CCHA saw two of its teams ranked among the top five suffer opening-night defeats before rebounding for decisive wins - while two other squads claimed tournament titles. On Friday, Alabama-Huntsville tied the game in the third period and sophomore forward Cody Campbell scored on a wraparound with just five seconds remaining in regulation to give the Chargers a 3-2 upset win at No. 5 Notre Dame. The Fighting Irish outshot UAH 51-14 the next night in a 3-1 win.

Sophomore goaltender Scott Greenham registered the first-ever shutout for Alaska in 45 all-time meetings with No. 3 Michigan on Friday in a 2-0 decision. The Nanooks then claimed the Kendall Hockey Classic title with a 5-1 win over Mercyhurst. Greenham - who stopped 43 of 44 shots and also had an assist - was tabbed the tournament MVP. Michigan posted a 6-1 win over Alaska Anchorage the next night.

Nebraska-Omaha claimed the title in its Icebreaker tournament. The Mavericks scored three third-period goals to beat Army 6-4 on opening night and then upset No. 11 UMass Lowell 4-3 in the championship game.

Quinnipiac finished off a road sweep of No. 17 Ohio State with a 3-1 victory on Friday despite getting outshot 25-6 in the opening period. Bemidji State also swept a ranked team, with 3-1 and 7-3 victories against 19th-ranked Air Force in the battle of the Serratore brothers.

Other noteworthy results included Rensselaer knocking off No. 16 New Hampshire 3-1, Northern Michigan topping 18th-ranked Minnesota Duluth by the same score and No. 20 Northeastern splitting (2-4 and 4-3) a series at Colorado College.