VEX Robotics: http://www.vexrobotics.com/competition

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Autonomous Robot Speedway Competition: http://www.ece.umd.edu/arsc/rules.php

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University Rover Challenge: http://www.marssociety.org/portal/c/urc

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FIRST Robotics Competition: http://www.usfirst.org/

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Trinity College Fire Fighting Home Robot Competition: http://www.trincoll.edu/events/robot/