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Fitbod - Personalized Strength-Training powered by Machine Learning

Challonge - The Ultimate Source for Tournament Brackets

MyFitnessPal - Track the number of calories that you consume each day with MyFitnessPal. The app also lets you create a diet and track the exercise that you complete each day whether it's walking, running or some other type of program.

Competize - Competize is a SaaS-based league and tournament management solution that offers deep fan engagement, live score management, software for scheduling, sponsor promotion, delegate administration, database in the cloud, and much more.

Fitocracy - Fitocracy is a social network that turns exercise into a cooperative and competitive exercise with friends, rivals, and strangers.