Mine: 2000 Florida @ Tennessee. The Jabar Gaffney no catch.
My list of those in my lifetime (due to the fact we should've won and lost/tied in heartbreak fashion or DID win every game only to have it taken from us)
1980 UGA - Had the game won three times and fumbled on 5 yard line when a FG would win it, and gave UGA their only NC in 70 years
1983 Virginia - UVA was about to drop football as a sport and upset us at homecoming
1983 Ole Miss - Upset loss kept us from Cotton Bowl showdown with Texas and top 10 ranking
1984 Army - blew a late lead
1984 UK - Questionable call late and clock ran out as we were driving for win
1987 Boston College - ended any NC chance
1988 Bama - 0-5 team played their @ss off and almost pulled it off
1990 Bama - ridiculous Majors coached game and blocked FG cost us tie
1990 Notre Dame - we almost come back and beat them, cost us NC chance
1992 Arky/SC/Bama - Three games Majors cost us all with funky endings, we should've won blown a NC chance and a 3 game SEC east lead
1994 Bama - Almost upset top ranked team with Peyton at QB
1995 Florida - Peyton and co dominated Florida at Swamp till Chavis/bad ref call on Kent/RB turnovers doomed us
1996 Memphis - BS call and just trying to grind it out cost us game
1999 Florida - got down and almost pulled off comeback in Swamp
1999 Arkansas - late TD cost us NC game appearance
2000 Florida - cost us SEC title on BS call
2000 LSU - came back from 24-6 in 4th to force OT but lost
2001 UGA - 3rd and Chavis cost us again
2001 LSU - The most heartbreaking and program damaging loss in the modern era, kept us from NC game
2003 Auburn - Another hard fought road comeback by Clausen came up short at end
2004 Notre Dame - Stupid Randy Sanders call for Hail Mary hurt Ainge, lost game, cost us season
2004 Auburn - UT outplayed Auburn, had two TDs called back
2005 Bama - Abortion of a game, lost as our fumbler fumbled again
2005 Vandy - 3rd and Chavis again
2006 Florida - 3rd and Chavis and terrible ref call cost us SEC and possible NC titles
2006 LSU - See the above post, same damn thing
2007 LSU - Led late again vs NC and had a legit shot to win
2008 UCLA/Auburn - lost two winnable games at end, beginning of the end for Fulmer
2009 UCLA/Bama - lost easily winnable UCLA game and played #1 to the end, came up short
2010 LSU/UNC - both games we basically won and then lost (1 due to Miles confusing our defense out of stupidity, 1 due to an obscure and incorrect ruling by refs)
2012 UGA/MSU/SC/Mizzou - Great offense kept us in games as underdogs, almost pulled off all four but lost due to lack of defense at end
2013 UGA - played our butts off, should've won but for fumble into endzone
2013 Vandy - terrible spot cost us game we should've won going away
2014 Florida - had that game won and coaching cost us
2015 Okla/Florida/Arky/Bama - Butch coaching cost us four games we should've won and NC appearance
2016 Texas A&M - heartbreaking comeback came up short in OT due to Dobbs missing a wide open Kamara and no defense
2016 Vandy - blowing that game with Sugar Bowl on line was inexcusable
2017 Florida - Hail Mary BS
2017 SC - Beginning of JG's true legacy game
2019 Ga State - Not heartbreaking just stupid
2019 BYU - more heartbreaking because they played good enough to win except for 1 defensive breakdown against decent BYU team