UK Micromouse Drag Race Rules: April 2019

The Drag Race

The aim of this class is for the mouse to travel as fast as possible over a straight course rather like that used for full-size drag racing, then to come to a standstill before reaching the end wall. Two mice will race against each other in a knockout competition where the first mouse across the line (allowing for time penalties) in the final will be classed as the winner. The timed run begins when the starting system indicates and finishes when the mouse crosses the finishing line. Both mice will be timed independently.


  • All the general micromouse rules apply.
  • Mice must actively follow the straight white line down the centre of the course.
  • Mice will incur a time penalty of 5 seconds for:
  • *hitting the end wall.
  • *requiring manual intervention to continue (touch penalty)
  • Mice will be disqualified for:
  • *‘jumping’ the start
  • *falling off the edge of the course.
  • *touching the safety barriers (if fitted) at the edge of the course.
  • *interfering with the mouse in the other lane in any way.

Track details

  • Overall, each lane on the track is 7.2 metres long by 0.28 metres wide. The lane surface will be black. A 19mm white line is laid up in the middle of the lane. The start box occupies the first 375mm of the track with the start line being defined by 19mm wide white lines. The track will be laid as flat as possible, but mice should be able to cope with a step of up to 3 mm across the track where the boards are joined, and be able to cope with white lines of thickness up to 0.5mm.
  • A start beam will detect jump-starts. The start beam will be aligned with the far edge of the start line.
  • The finish line is defined by 19mm wide white lines. The finish line timing beam will be aligned with the near edge of this line.
  • The braking area comprises the final 1.2 m of the track. A block of polystyrene foam will be placed at the end of the braking area. If the foam is displaced by a braking mouse, the 5 second penalty will apply. A catch net will be provided behind the polystyrene to arrest out-of-control mice, but some mouse damage may occur.
  • A 300 mm high gantry will straddle the track at the finish line.
  • The start and finish lines extend 100 mm in from the sides of the course. There is a 40 mm gap between the centre line and the start and finish lines.
  • At the organiser’s discretion, a safety barrier up to 20mm above the track surface may be fitted to the sides of each track.
  • The surface is typically 12 mm MDF painted with black paint finished with matt varnish, or any similar materials.
  • The general tolerance is ± 5% or 3 mm whichever is less.
Drag Race Course Dimensions