Ghetto Warz
Ghetto Warz has been run by USC since 2004. It has historically been a hybrid tournament, largely because of the single trash packet in the middle of the tournament. Each incarnation has been edited by longtime USC player Mik Larsen.
2004
Ghetto Warz I was initially scheduled for October 2003, and rescheduled for April 2004 after no teams sent in a packet. The tournament was notable for introducing its higher-than-normal trash content including a 1/1 "Ghetto Trash" distribution, as well as short tossups (to be used for timed rounds) and an unannounced trash packet in the middle of the tournament.
Initially, it was unknown whether UCSD, UCLA/Berkeley, or the Mobb Depp team consisting of Seth Teitler and Steve Kaplan won the tournament, since all three teams tied at 2-1 in the playoff round robin. Statistics from the round robin found here show that UCLA/Berkeley had a one-game lead after the round robin, and thus was declared the winner based on total record.
2005
UCLA won the tournament, defeating a Claremont team in the de facto final round.
2006
Ghetto Warz III took place on April 15, 2006, and was mirrored at Tulsa. The USC tournament ended in a tie. UCLA A and UC Irvine A had identical 6-2 records and a finals packet was unavailable. UCLA A was awarded the championship based on a higher points per game average. Discussion of the tournament can be found here.
2007
Ghetto Warz IV took place on April 28, 2007. It was the first Ghetto Warz to get packets from outside the West Coast, having packet-swapped with UT Chattanooga's Moon Pie. Side events were a trash singles tournament on the RC Cola packets and a "name that tune" singles tournament held after the tournament itself. UCLA A went 9-1 to win the tournament. Discussion of the Ghetto Warz and Moon Pie packets can be found here.
2008
Ghetto Warz V was held on April 19th, 2008. Berkeley went undefeated to win the tournament, followed by UCLA and the Caltech B team. Most of the questions packets were submitted just days before the tournament, and some questions were re-used from a Ghetto Warz 2007 packet -- which meant they had been available online long before the tournament started.