Del Mar sports teams have won many League and CCS championships over the course of the school's history - the banners commemorating those titles hang in the school's big gym. In the 2005-2006 school year, several teams won the title of League Champions, including football, JV boys' soccer, badminton, and girls' swimming. The 2006-2007 season was no different, as boys' basketball won the league, as did the ladies soccer team, who went on to CCS. In the spring of 2007, the track & field team sent the first relay team to CCS in 10 years, but fell short of winning league to Andrew Hill. Field hockey has won league titles in 2001-2002 and 2008-2009, 2009-2010, 2010-2011. In fall 2007, the football team made history by going 10-0, a feat that has never accomplished in the school's history, and also was able to host the first round of CCS Playoffs at home for the first time in 11 years. In 2007-2008 Del Mar's track team won the League championship going a perfect 7-0 in League. In 2009, the girls basketball team won a school-record 21 games and made it to the second round of CCS playoffs. Girls basketball is the most consistent team, in terms of reaching the playoffs.