Kim Crosser wrote: Tom is absolutely correct (as usual). The Zone 8 competition rules clearly state:
"Four wheels off the designated course will constitute a DNF (did not finish)."
There is no other condition that results in a DNF penalty.
This rule is more strict in some ways than the SCCA Solo II rules. You are actually allowed under SCCA rules to
backtrack if you go off course to correct your mistake. The act of going off course with all 4 wheels does not automatically result in a DNF. Only
omitting a portion of the course does. If you go off course and realize it in time, you can turn around, re-enter the course befoe your mistake was made, and repeat the section correctly, even drive through parts of the course twice, if need be, without penalty (as long as you knock no cones out of their boxes while doing this).
Here is the relevant section of their rules. Note that there are special conditions for going too slow on course after stopping for a downed cone (or red flag), or for tripping the finish light beam with wheels off course (or tripping them twice) which
does result in a DNF, due to delaying the event or causing someone else to have a rerun):
7.9.2 Pylons Down on Course
A competitor encountering a downed or displaced pylon on course
has the option of continuing the run or stopping as soon as possible,
and pointing out the downed or displaced pylon to a course worker.
If the competitor stops, he or she must proceed directly and slowly
off course and will then be granted a rerun. However, if the
competitor completes the run, the time will stand.
In the case in which a competitor is red flagged or stops for a
downed or displaced cone on the course, the competitor may continue
slowly through the remainder of the course, or may exit the
course directly, and will be granted a rerun if appropriate. Failure to
exit the remainder of the course at an appropriate speed (generally
25-30 mph) will result in a DNF for that run. It is important to clear
the course in a timely manner to ensure the event remains on schedule.
Reruns for downed cones after the timing finish line will only be
given at the discretion of the Chief Steward
7.9.3 Course Deviation
A “DNF”, or a time penalty if so specified in the supplementary
regulations, shall be charged for any uncorrected deviation from the
course, or for unnecessarily delaying the event. A course deviation
shall not be charged if any part of the car hits a marker defining the
limits of the course. A DNF is charged only if part of the course is
omitted. In returning to the course after an off-course excursion, it
is acceptable to drive a part of the course a second time.
If the finish trip beam is broken while the front two wheels of the car
are off-course, the run will be scored as a DNF. Additionally, if after
breaking the finish trip beam a driver causes the finish trip beam to
be broken again, stopping the timer for the following driver, the time
for the first driver will be scored as a DNF and the second driver may
be granted a rerun.TT