Enduro timing: why FIM special tests are measured to hundredths of a second

Enduro is an unusual kind of competition: over the course of a day, a rider follows a prescribed route with time checks and also completes several special tests where the real racing takes place. Timing therefore has two roles that require very different levels of precision.

Special tests: hundredths make the difference

A special test is a timed off-road section where the rider starts from the start line with the engine running and the time is recorded at the finish. Under FIM rules, tests must use an automatic printing device synchronized with the time of day and accurate to hundredths of a second. The time is captured by photocells or by a transponder connected to the timing equipment. The FIM distinguishes between the Cross Test and Enduro Test, both at least 3 kilometres long, and the shorter Extreme Test.

Under FIM rules, the transponder is mandatory and the rider is responsible for it. It must be mounted on the motorcycle in the prescribed position and orientation, secured at a minimum with cable ties and ideally with a screw or rivet. Velcro or adhesive alone will not pass technical inspection. We explain why chip placement matters on a metal motorcycle in Country cross and enduro: timing a motorcycle.

Time checks: assessed by the minute

Between tests, the rider follows the route and must reach each checkpoint at the scheduled time. The assigned minute is what counts: arriving too early or too late brings a one-minute penalty for every whole or partial minute. The recorded time becomes the start time for the next section, while a larger delay results in exclusion. The day’s result is the sum of all special-test times and penalties.

Backup timing and live results

Under the FIM Enduro rules, official events must have a spare timer, independent backup timing and live online results. Other sports follow a similar philosophy, as described in Backup timing: why you need it.

Why not thousandths?

Hundredths are a compromise between precision and the realities of the terrain. In mud and woodland, riders may be separated by seconds, but hundredths can still decide shorter tests. A comparison of timing standards shows how requirements differ across sports.

Races with less demanding requirements

Local enduro and country cross events do not have to follow FIM rules. Whole-second timing and a simple transponder or RFID chip are often sufficient. The key is to decide the necessary precision in advance and choose the equipment accordingly. TAQIO serves this purpose at events where whole seconds are sufficient.