12. Duties of Timekeepers 12.1. The principal duties of Timekeepers are to:
a. b.
c.
d.
e.
f.
Report personally to the Chief Timekeeper at the start of an Event
Use appropriate certified equipment for the type and status of Event and for the authenticity of the Results produced.
Register appropriate times for the Competition and any other times required by the Clerk of the Course sign the timing reports and pass them to the Chief Timekeeper.
Send their original time records to the Clerk of the Course, the Stewards of the Event or the ASN if requested.
Communicate any times or results only to the Clerk of the Course, the Stewards of the Event or in accordance with their instructions.
Prepare and sign a report relating to timing and send it with all necessary supporting documents to the Clerk of the Course( or to the ASN in the case of a record attempt).
g. Act as Judge of Fact in respect of timing matters at Race and Speed Events.
12.2. If there is no appointed Chief Timekeeper at Kart Race Events the Chief Lap Scorer will be a Judge of Fact in respect of laps completed and finishing order.
At Speed Events unless appointed as the Course Controller Timekeepers must NOT accept responsibility for ensuring the Course is clear so as to permit the next Competitor to start.
12.3. The Timekeeper shall notify the Course Controller when the Timekeeper is ready for the next Competitor.
13. Timing Requirements
13.1. Except as provided by specific NCR times recorded using manually operated equipment should be rounded to the nearest 0.1 of a second.
13.2. The accuracy of automatically operated equipment will be as classified.
13.3. Where times are not to be published speeds should be given to the nearest mile per hour and no minimum standard of equipment applies.
13.4. When calculating average speeds the result should be consistent with the accuracy of time and distance measured and must be rounded down at all times.
14. Standing Start Speed Events: 14.1. For Hill Climbs and Sprints timing shall be in accordance with the provisions of Chapter 14.
14.2. For Hill Climbs Sprints and Record attempts the Chief Timekeeper will arrange for an appointed Timekeeper to be positioned at the start line to ensure that each vehicle is correctly aligned before being permitted to start.
14.3. Where timing is actuated by a light beam only Vehicles fitted with a timing strut will have their times recorded( Chapter 14)
14.4. For Speed Events( except Drag Races) the light beams must be set parallel to and between 28cm and 43cm above the road surface. The light beam at the finish must be set at the same height as the start beam. Competitors must be positioned at the start so that the part of the Vehicle that will break the beam is 10cm behind it.
14.5. For Speed Events( except Drag Races) the Course Clear / Closed signal must be separated from any other Signal.
14.6. Should the Competitor react to the timing system too quickly and drive away from the starting line before the green“ go” signal then a foul start has occurred and when no time will be recorded and the Competitor may be Disqualified( red light start).
Motorsport UK 2025 National Competition Rules Version 11
Chapter 5 Part A Appendix 7- Timekeepers and Handicappers 169