COVID-19 Global Hackathon 1.0 Online #BuildforCOVID19 Global Online Hackathon Non-monetary prizes Winners announced 18553 participants
Hack&Roll 2017 Singapore, Singapore HacknRoll is NUS Hackers' annual 24-hour hackathon, and the largest student-run hackathon in Singapore. $16,000 in prizes Jan 21 – 22, 2017 234 participants