USACO Rating
A tool to estimate USACO problems' difficulties in terms of CodeForces rating
Lexington Informatics Tournament
Founder of an international CS competition with more than 1000 participants
Founder of HSCSA - an association of High School CS Clubs from around the US
CF Stonks
CF Stonks — A Virtual Stock Market Based on Your CodeForces Rating!
Using genetic algorithm and neural network to create this AI agent for playing