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• Matches are two minutes and fifteen seconds long. The first fifteen seconds is autonomous mode, and the final fifteen seconds is the end game.
• There is a 10ft tall "rack" in the center of the playing field with eight columns of three spider legs.
• The spider legs are hanging by chain from the rack, allowing them to move independently from the structure.
• The goal is to hang inner tubes, also known as "ringers" on the rack during the teleoperated period to make vertical and horizontal rows.
• Each alliance starts with eighteen ringers; nine are in the alliance station, and the remaining nine are leaning against the opposing alliance's alliance wall.
• The home zone, or starting location, extends eight feet from the alliance wall. All robots must start the match completely inside the home zone.
• Before the start of each match, but after all drivers exit the field, the rack will be rotated or translated within three feet of the center of the field.
• There are three classes of robots, each having a different height and weight limit:

  	Maximum Width	Maximum Depth	Maximum Height	Maximum Weight
  Class 1	28 inches (71.12cm)	38 inches (96.52cm)	48 inches (121.92cm)	120 pounds (54.43Kg)
  Class 2			60 inches (152.40cm)	110 pounds (49.89Kg)
  Class 3			72 inches (182.88cm)	100 pounds (45.36Kg)

Autonomous Mode

• Autonomous mode consists of the first fifteen seconds of the game. The robots operate without any human interaction.
• Robots can choose to start the match with a "keeper", a ringer with the FIRST logo on the side.
• Keepers cannot be spoiled by spoilers.
• Four green cathode lights are mounted on top of the rack at ninety degree intervals.
• Robots can use the CMUCam2 to track the lights to orient themselves toward the rack and score the keeper on a spider leg.

End Game

• During the end game, robots must evacuate from the opposing alliance's home zone. Robots in the opposing alliance's home zone will be awarded a ten point penalty every five seconds they stay in the home zone.
• Robots may return back to their home zone and deploy their ramps for alliance members to climb.

Human Player Element

• Human players throw the ringers in the alliance zone out onto the playing field.
• Human players can move anywhere within the alliance zone to obtain and throw ringers.
• Human players may score on the rack.
• If a ringer is placed on an alliance member's robot (including the flag), the robot is considered to be "in possession" of that ringer, and must discard it before picking up a new ringer. This does not apply to the opposing alliance's robots.

Scoring

• Spoilers are black ringers that may be placed on the rack over ringers to negate their effect on scoring. Spoilers may be removed and replaced by either alliance.
• Ringers are scored exponentially; that is, a row of one ringer is worth two points, a row of two is worth four points, a row of eight is worth eight points, etc.
• Robots may elevate themselves on alliance member's ramps if available. For every robot lifted at least four inches above the ground, fifteen bonus points are awarded. For every robot lifted at least twelve inches above the ground, thirty bonus points are awarded.
• Robots must not be touching any field element, including ringers, the alliance wall, etc., in order to qualify for bonus points.