TreeHacks (Stanford University)
Acceptance Rate: Approximately 7.5% to 8.3%
Details: TreeHacks is Stanford University's premier hackathon, attracting thousands of applicants from around the world. In 2025, over 12,000 students applied, and about 1,000 were selected.
HackMIT (Massachusetts Institute of Technology)
Acceptance Rate: Approximately 5–10% for external applicants
Details: HackMIT is MIT's largest undergraduate hackathon, drawing thousands of applicants globally. While MIT students are guaranteed admission, spots for external applicants are highly limited.
HackHarvard (Harvard University)
Acceptance Rate: Approximately 70%
Details: HackHarvard is a 36-hour undergraduate hackathon hosted at Harvard University. It draws a significant number of applicants from top universities worldwide, making it highly competitive.
Hack the North (University of Waterloo, Canada)
- Details: Canada's largest hackathon, held at the University of Waterloo. It attracts over 1,000 students globally, offering a substantial prize pool and opportunities for innovation.
HackNYU (New York University)
Details: A 48-hour hackathon hosted by NYU students around the world. Participants build projects, learn from talks and mentors, and win prizes.