The following weekend, Dilworth produced one of the biggest upsets in 1A history, beating 2016 National Champions and 2017 World Championship silver medallists, Mount Albert Grammar School, 20-15. The win brought national attention to the college and took Dilworth to the top of the 1A table for the first time in the school's history. Dilworth closed out their 2017 campaign with wins against Aorere, 20-3, and Tamaki, 20-5. The school's basketball program has also enjoyed much success in recent years. Despite a roll of around 350 students at the Senior Campus, the school's premier basketball team defeated some of New Zealand's powerhouse basketball schools to win the Auckland Premier Championship in 2007 and 2008. As of 2015, 26% of students are Māori, 25% are Pākehā, 21% are Tongan and 10% are Samoan. The Cook Islands Māori, South East Asians and Chinese make up an additional 3% each, while Africans, Indians and Niuean make up 2% each. The school had there first headmaster in 1908.