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Timing System

The following are basic descriptions of each component of our automatic electronic timing service, which employs our computerized solid state quartz timing system, including our latest proprietary built solid state timer.



This CPU is specifically designed and built by American Teletimer Corp. with its sole purpose being to accurately and consistently, without any malfunctions, time horse races at any type or size racetrack. All equipment is operative under all reasonable weather conditions including rain, snow and fog. Automatic operation is maintained at all times with a provision for a manual override to be applied at any time during a race to allow for objects on the racetrack such as outriders, loose horses, birds, etc. or a malfunctioning or misaligned infra red timing station. The timing CPU constantly monitors the infra red sensors and by means of visual and audible signals, informing the operator of the status of the system at all times.

Timer (2)As an extra measure of safety and reliability our timing system employs a series of “sequence” tones set at intervals of 20 seconds for thoroughbred races, 25 seconds for standard bred races, between fractional times. During that 20 or 25 second “grace” period after the start of a race or after a fractional time, the timing CPU will not accept a signal to post a time from the next sensor to be used in that race. At the 20 or 25 second mark an audible alert will sound indicating to the operator that the next sensor to be used has been placed into the active circuit. In addition, if the next sensor to be used in a race is blocked or otherwise malfunctioning, an audible alert will sound an alternating tone indicating to the operator that a manual override is required. That action is simply to press a button or pull a switch (dependent on timer CPU model) to remove the malfunctioning timing station from the active circuit and then to press another button to manually trigger that timing station as the lead horse reaches it.

Field Indicators


  • Our U.S. registered trademark, Teletimer┬«, is synonymous with racetrack timing.
  • Teletimer┬« timing systems have the capability to accurately provide fractional and finish times (in 1/5ths, 1/10ths or 1/100ths of a second) for any distance race on dirt or turf tracks including an unlimited number of turf course lanes.
  • Times are and always have been accurately reported, not estimated nor produced.
Eyes & Beams

timing eye_n_beam

As a further additional safety feature, the finish line sensor must be placed into the sequence of timing stations employed, by pressing a button or pushing a switch (dependent on timer CPU model) prior to the horses reaching the finish line. The operational reason for this additional safety feature is to recognize the occasional real life situations that can occur at a racetrack i.e. track photographer blocking the finish line, rider less horse leading the field at the finish, birds flying up from the racetrack by the finish line, malfunctioning finish line sensor, etc. All of these situations have occurred and will continue to occur, however infrequently. Our standard operating procedure is to press or push the finish switch or button (dependent on timer CPU model) when the horses are a few lengths from the finish line after visually checking the finish line for any possible interference, thereby insuring automatic operation and a comfortable level of safety. If an incorrect fractional or finish time is ever posted it can be cleared immediately by pulling a lever switch or pressing a button (dependent on timer CPU model) and the correct time can be inserted in its place by pressing the appropriate buttons on a number keypad or by using a thumbwheel switch.

Our proprietary built timing CPU is hardware based, computer chips, not software based, therefore eliminating any possibility of software “crashes”. The digital serial output has its instructions burned in on an EPROM for reliability, while retaining the flexibility for easily accomplished updates if changes in formats are ever requested.

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