67Ranked.com

Overview

67 was the most popular meme of 2025, and with U of T Hacks's theme as identity, I decided to bridge the gap between brainrot and my identity by building 67ranked, a way to share your brainrot with your friends and duel them as well. The game is really simple: 67 as fast as possible.

I implemented real-time 67-detection using MoveNet Lightning via TensorFlow.js and a custom scoring algorithm. I also built a global leaderboard and real-time dueling system using Supabase, deploying the whole thing as a Vercel webapp.

How It Works

I had originally used MediaPipe Pose and Hands for the 67 detection, but there were a lot of issues with it detecting hands and overcounting repititions. The switch to MoveNet made sure that the model was also tracking the entirety of the users' arms, making rep detection much easier with fast moving arms and imperfect cameras.

Results

I Won the Ig Nobel Award for Funniest Hack at UofTHacks 2026 which was my first ever solo hackathon win. The project went viral the day of, gaining over 500 users in the first 24 hours before I switched from MediaPipe to MoveNet and had to delete the old scores (they were much higher than they should have been).

This was super fun to build!Go try it at 67ranked.com and see where you rank.