DEFINITION
An unchaseable lead is a lead run that judges deem impossible to fairly follow — too slow, too erratic, off-line, or filled with brake-checks and snaking. It cancels the lead's score advantage and forces a rerun (or, in some series, a strike against the lead).
Calling unchaseable lead is rare and almost always controversial. It exists to prevent leads from sandbagging.
HISTORY & ORIGIN
The unchaseable-lead protection was formalised in Formula Drift after the 2012 season when several controversial leads led to public scoring disputes.
TECHNIQUE BREAKDOWN
Judges identify the unchaseable lead at the run debrief, void the lead's claim on the run and call OMT or award the run to the chase.
PRO TIPS & COMMON MISTAKES
• Don't sandbag. If you can't run on pace, run anyway — judges score commitment, not lap times alone.
• Common mistake: assuming a slow lead helps because the chase will overtake. Overtaking the lead is a separate penalty.
Judges declared the lead unchaseable after his second brake-check on entry.