It took over 120 minutes of scoreless hockey but senior Jinelle Zaugg's goal at 7:09 into the fourth overtime vaulted Wisconsin past Harvard 1-0 and into the NCAA Frozen Four.
The Eagle River, Wis., native scored her 26th goal of the season and was assisted by senior Sara Bauer and sophomore Alycia Matthews.
The seven-period game ranks as the second longest game in NCAA history, the longest played in 1996 when New Hampshire defeated Providence 3-2 in five overtimes.
The Badgers played their final game in Madison for the 2007 season in front of a Kohl Center women's hockey record-setting 5,125 crowd. The total also ranks as the second largest NCAA women's hockey crowd behind a 5,167 crowd at the 2003 championship game in Duluth, Minn., when Minnesota-Duluth skated to a 4-3 double overtime win over Harvard..
Despite only tallying one goal, the Badgers outshot Harvard 68 to 36.
Wisconsin travels to Lake Placid, N.Y., March 16 and 18 for its second consecutive Frozen Four appearance. The Badgers will face off against St. Lawrence in the semi-final game at 4pm CT Friday, March 16.
It's the chance for Mark Johnson (pictured) to return to Lake Placid, where he scored two goals for Team USA in the 1980 American win over the heavily favored Soviet Union in what's known as the Miracle on Ice.