| Rank | Game Length | OTs | Date | Game/Site | GWG |
| 1 | 141:35 | 5 | 3/4/2006 | Yale 3, Union 2 ECACHL First Round (Game 2, Best of 3 won by Yale) Messa Rink (Schenectady, N.Y.) | David Meckler (shorthanded) |
| 2 | 129:30 | 4 | 3/8/1997 | Colorado College 1, Wisconsin 0 WCHA First Round (Game 2, Best of 3) Cadet Ice Arena (Colorado Springs, Colo.) | T.J. Tanberg |
| 3 | 123:53 | 4 | 3/26/2000 | St. Lawrence 3, Boston University 2 NCAA East Regional (Second Round) Pepsi Arena (Albany, N.Y.) | Robin Carruthers |
| 4 | 121:05 | 4 | 3/14/2003 | Colgate 4, Dartmouth 3 ECAC Quarterfinal (Game 1, Best of 3) Thompson Arena (Hanover, N.H.) | Kyle Wilson |
| 5 | 111:33 | 3 | 3/11/2007 | St. Cloud State 3, Minnesota-Duluth 2 WCHA Quarterfinal Game 3 National Hockey Center, St. Cloud, Minn. | Andreas Nodl |
| 6 | 111:13 | 3 | 3/26/2006 | Wisconsin 1, Cornell 0 NCAA Midwest Regional Championship Resch Center (Green Bay, Wis.) | Jack Skille |
| 7 | 109:27 | 3 | 3/20/2004 | Maine 2, Massachusetts 1 Hockey East Championship FleetCenter (Boston, Mass.) | Ben Murphy |
| 8 | 105:40 | 3 | 3/7/2008 | Yale 3, Rensselaer 2 ECAC First Round (Game 1 Best of 3) Ingalls Rink (New Haven, Conn.) | Broc Little |
| 9 | 104:22 | 3 | 3/9/2008 | Nebraska-Omaha 2, Alaska 1 CCHA First Round (Game 3, Best of 3) Qwest Center Omaha (Omaha, Neb.) | J.P. Platisha |
| 10 | 102:09 | 5(*) | 12/21/1968 | North Dakota 5, Minnesota 4 Minnesota Holiday Classic Championship Metropolitan Center (Bloomington, Minn.) | Rod "Buzz" Christensen |
| 11 | 100:43 | 3 | 0/0/0000 | Boston College 5, New Hampshire 4 Hockey East Semifinal TD Banknorth Garden (Boston, Mass.) | Benn Ferriero (pp) |
| 12 | 100:28 | 3 | 3/30/1995 | Maine 4, Michigan 3 NCAA Semifinal Providence Civic Center (Providence, R.I.) | Dan Shermerhorn |
| 13 | 99:53 | 2 | 3/10/2001 | Clarkson 3, Vermont 2 ECAC First Round (Game 2, Best of 3) Cheel Arena (Potsdam, N.Y.) | Rob McFeeters |
| 14 | 99:28 | 4(*) | 12/30/1987 | Clarkson 7, Colgate 6 Syracuse Invitational Tournament Onondaga War Memorial Auditorium (Syracuse, N.Y.) | Mike Morrison |
| 15 | 97:38 | 3 | 3/14/2008 | Minnesota State 1, Minnesota 0 WCHA First Round (Game 1, Best of 3) Alltel Center (Mankato, Minn.) | Trevor Bruess (shorthanded) |
| 16 | 97:11 | 4(*) | 3/24/1984 | Bowling Green 5, Minnesota-Duluth 4 NCAA Championship Game 1980 Olympic Arena (Lake Placid, N.Y.) | Gino Cavallini |
| 17 | 96:59 | 2 | 3/16/2008 | Minnesota 3, Minnesota State 2 WCHA First Round (Game 3, Best of 3) Alltel Center (Mankato, Minn.) | Tony Lucia |
| 18 | 96:26 | 2 | 3/11/2001 | Providence 4, Boston University 3 Hockey East Quarterfinal (Game 3, Best of 3) Schneider Arena (Providence, R.I.) | Marc Suderman |
| 19 | 96:11 | 2 | 3/16/2002 | Harvard 4, Cornell 3 ECAC Championship 1980 Olympic Arena (Lake Placid, N.Y.) | Tyler Kolarik |
| 20 | 96:01 | 2 | 3/18/2005 | Harvard 4, Colgate 3 ECACHL Semifinal Pepsi Arena (Albany, N.Y.) | Kevin Du |
| 21 | 95:18 | 2 | 3/23/2007 | Notre Dame 3, Alabama-Huntsville 2 NCAA Midwest Regional Semifinal Van Andel Arena, Grand Rapids, Mich. | Ryan Thang |
| 22 | 95:14 | 3(a) | 12/27/1996 | Cornell 4, Providence 3 Syracuse Invitational Tournament Semifinal Onondaga War Memorial Auditorium (Syracuse, N.Y.) | David Adler |
| 23 | 94:41 | 2 | 3/9/2002 | Harvard 2, Brown 1 ECAC First Round (Game 2, Best of 3) Bright Hockey Center (Cambridge, Mass.) | Dominic Moore |
| 24 | 94:30 | 2 | 3/11/2006 | Bentley 4, Army 3 Atlantic Hockey Quarterfinal John A. Ryan Skating Arena (Waltham, Mass.) | Brett Murphy |
| 25 | 94:18 | 2 | 3/10/2006 | New Hampshire 2, Providence 1 Hockey East Quarterfinal Game 2 (UNH Wins Best of 3 series) Whittemore Center (Durham, N.H.) | Daniel Winnik |
| 26 | 94:15 | 2 | 3/8/2002 | Dartmouth 5, Colgate 4 ECAC First Round (Game 1, Best of 3) Thompson Arena (Hanover, N.H.) | Pete Summerfelt |
| 27 | 92:10 | 4(*) | 3/4/1988 | Bowling Green 5, Ferris State 4 CCHA Quarterfinal (Game 1, Best of 3) BGSU Ice Arena (Bowling Green, Ohio) | Matt Ruchty |
| 28 | 91:23 | 4(*) | 3/3/1979 | Ohio State 5, Northern Michigan 4 CCHA Semifinal OSU Ice Rink (Columbus, Ohio) | Steve Amoruso |
| 29 | 90:50 | 2 | 12/28/2001 | Rensselaer 5, Quinnipiac 4 Rensselaer/HSBC Holiday Hockey Tournament Semifinal Houston Field House (Troy, N.Y.) | Chris Migliore |
| 30 | 90:32 | 2 | 3/11/2006 | Cornell 3, Clarkson 2 ECACHL Quarterfinal (Game 2, Cornell wins series 2-0) Lynah Rink (Ithaca, N.Y.) | Matt Moulson |
| 31 | 90:28 | 2 | 3/12/1994 | New Hampshire 6, Boston College 5 Hockey East Quarterfinal (Game 2, Best of 3) Snively Arena (Durham, N.H.) | Eric Boguniecki |
| 32 | 89:31 | 2 | 3/28/1996 | Colorado College 4, Vermont 3 NCAA Semifinal Riverfront Coliseum (Cincinnati, Ohio) | Chad Remackel |
| 33 | 89:29 | 2 | 3/27/1994 | Minnesota 2, Mass.-Lowell 1 NCAA West Regional (Second Round) Munn Ice Arena (East Lansing, Mich.) | Jeff Nielsen |
| 34 | 89:17 | 2 | 12/29/2001 | Northern Michigan 4, Cornell 3 Everblades College Classic Semifinal TECO Arena (Estero, Fla.) | Bryce Cockburn |
| 35 | 89:09 | 2 | 3/18/2005 | Boston College 2, Maine 1 Hockey East Semifinal FleetCenter (Boston, Mass.) | Andrew Alberts |
| 36 | 88:34 | 2 | 3/13/1998 | Maine 3, New Hampshire 2 Hockey East Quarterfinal (Game 1, Best of 3) Whittemore Center (Durham, N.H.) | Ben Guite |
| 37 | 88:30 | 2 | 3/10/2006 | Cornell 4, Clarkson 3 ECACHL Quarterfinal Game 1 Lynah Rink (Ithaca, N.Y.) | Raymond Sawada |
| 38 | 87:57 | 2 | 3/8/2009 | Western Michigan 4, Lake Superior State 3 (Best of 3 won by Western Michigan) Lawson Ice Arena (Kalamazoo, Mich.) | Kevin Connauton |
| 39 | 87:36 | 2 | 3/16/2008 | Colgate 3, Clarkson 2 ECAC Quarterfinal (Game 3, Best of 3) Cheel Arena (Potsdam, N.Y.) | David McIntyre |
| 40 | 87:31 | 2 | 3/11/2001 | Nebraska-Omaha 4, Ohio State 3 CCHA First Round (Game 3, Best of 3) Omaha Civic Auditorium (Omaha, Neb.) | Billy Pugliese |
| 41 | 87:16 | 2 | 3/9/1993 | Colgate 4, Dartmouth 3 ECAC Preliminary Round Thompson Arena (Hanover, N.H.) | Andrew Dickson |
| 42 | 86:33 | 3(*) | 3/14/1976 | Minnesota 7, Michigan State 6 WCHA Second Round (Game 2, total goals) Munn Ice Arena (East Lansing, Mich.) | Pat Phippen |
| 43 | 86:18 | 2 | 3/9/2002 | Quinnipiac 6, Iona 5 MAAC Quarterfinal Northford Ice Pavilion (Northford, Conn.) | Chris White |
| 44 | 85:45 | 3(*) | 3/29/1985 | RPI 6, Minnesota-Duluth 5 NCAA Semifinal Joe Louis Arena (Detroit) | John Carter (pp) |
| 45 | 85:00 | 2 | 3/14/2003 | Boston University 6, Boston College 5 Hockey East Semifinal FleetCenter (Boston, Mass.) | Justin Maiser |
| 46 | 84:25 | 2 | 10/16/1999 | Denver 3, Providence 2 Ice Breaker Cup Championship Magness Arena (Denver, Colo.) | Joe Ritson |
| 47 | 83:57 | 3(*) | 3/15/1992 | Colorado College 5, Minnesota-Duluth 4 WCHA Quarterfinal (Game 3, Best of 3) Broadmoor World Arena (Colorado Springs, Colo.) | Grant Block |
| 48 | 83:30 | 2 | 3/23/2001 | Colorado College 3, St. Lawrence 2 NCAA East Regional (First Round) The Centrum (Worcester, Mass.) | Paul Manning |
| 49 | 83:15 | 3(*) | 12/29/1985 | Toronto 5, Bowling Green 4 Key Bank Classic Championship 1980 Olympic Arena (Lake Placid, N.Y.) | Glen Murphy |
| 50 | 83:02 | 3(*) | 11/3/1990 | Providence 6, RPI 5 USAir Tournament Championship Schneider Arena (Providence, R.I.) | Lyle Wildgoose |
All games featured 20-minute overtimes except:
| Rank | Game Length | OTs | Date | Game/Site | GWG |
| 1 | 145:35 | 5(*) | 3/10/96 | New Hampshire 3, Providence 2 ECAC Women's Championship Game Towse Rink/Whittemore Center (Durham, N.H.) |
Brandy Fisher |
