Course Measurement and Certification Procedures
Statement of Requirements
There are seven basic steps involved in measuring a course for certification.
These are:
- Lay out an accurate calibration course. The calibration course must
be a straight stretch of paved road that is reasonably level and relatively free
of traffic and at least 300 meters in length. You may wish to check with the
nearest regional certifier to determine if there is a suitable calibration course
near you.
- Calibrate the bicycle. Ride the bicycle over the calibration course,
taking care to ride in as straight a line as possible. At least four
calibration rides must be made immediately prior to measuring the race
course. The "working constant" is the number of counts/km (or per
mile) times the short course prevention factor of 1.001.
- Measure the course. Ride the bicycle over the course, following the
shortest possible route as it will be available to the runners on race day.
At least two measurements over the course are required for certification.
Use the first measurement to establish tentative start and finish marks. Use
the second (and any subsequent) measurement to check the distance between
those same marks. In particular, during the second measurement, simply
record counts at the points already marked during the first measurement. Do
not make new marks on the road during the second measurement. If you measure
on different days, calibrate both before and after measuring on each day.
- Recalibrate the bicycle. Ride the bicycle over the calibration course at
least four times immediately after the course measurement(s). After
recalibrating, determine your constant for the day, which is the larger of
the pre-measurement (working) constant, or post-measurement (finish)
constant. (Note: Measurements calculated using the average of the working
and finish constants will also be accepted; however, use of the larger
constant is strongly preferred.)
- Determine the proper measured course length. Recalculate each measured
distance using the appropriate constant for the day. If you only measure the
course twice, the proper measured length is the smaller value. E.g., you
measure between the same start and finish points and obtain distances of
10,000 and 9,993.7 meters. The proper measured length is 9,993.7 meters. If
you measure three times, the proper measured length is the smallest value.
If you only measure twice, the two measurements may not differ by more than
0.08% or you must take a third measurement.
- Make the final adjustments to the course. If the proper measured length
differs from the desired (or advertised) course length, you will need to
adjust either your start, finish, or a turn-around point. These adjustments
may be made with a steel tape. Once all the measurements have been
completed, the proper set of marks should be made permanent and all others
should be erased.
- Submit applications and supporting documentation to your regional
USATF/RRTC certifier (see Appendix F
for the application forms). Carefully record all data taken and prepare a
map showing the course layout, details of the start and finish zones
and turn-around points, and any areas where the certification will require
erection of barriers that restrict runners to a path longer than the shortest
path available using the whole roadway (but note: for simplicity and to minimize
the chance of having your course found short, it always best to lay out courses
without any "restrictions" of this sort). In drawing the
map, it is also highly desirable to include a line which displays the actual
path measured through the course.
Note: Maps of all certified courses are now available
online. Measurers should be aware that their maps will be posted on the
Internet for all the world to see. Runners who are thinking of running a race
may view its map at this site. And race directors who are thinking of hiring
a particular measurer may view maps that the measurer has produced, as evidence
of the quality of this measurer's work.