Elo Challenge vs Libra

In most sports, the world top players has rating to reflect their relative strength among peers. Usually the player rating is based on past win-loss records in major tournaments. Some schools and sports club does maintain player rating for their members. However, these rating system are not available for casual players like you and me. Elo Challenge is a type of competition where members play matches against each other and move up and down in the ranking as they win or lose. Elo Challenge makes 1-on-1 sports such as badminton, tennis, squash, table tennis, martial art, fencing, chess more engaging, competitive and fun. This app automatically maintain player ranking using Elo points upon submission of match scoresheet. You can view player rating and Elo point graph instantly. You can also see player's overall and head to head performance statistics in terms of match winning percentage, point winning percentage and average score. You can share ranking result on WhatsApp, SMS, social network, etc. Please email your feedback and feature request to nebitrams@gmail.com.

Measure the skill of individuals within a range of competitive environments using the Libra app. • Create leagues to track a set of players across a series of matches • Record your match results • Check the leaderboard to see the ratings of players in your league The Libra rating system is very flexible • Supports any number of teams • Supports different numbers of players per team • Supports different team and player sizes across matches The current rating system is a poor fit for some games • Those that include draws • Those where players can change teams during a match • Those where some teams are systematically advantaged The rating system used by Libra is based on TrueSkill, which models the skills of players as a Gaussian. The ratings in the app are displayed using three numbers, which represent the lower bound, mean, and upper bound of the Gaussian, where the bounds are set three standard deviations away from the mean.