In this hypothetical situation, the first logical step is to eliminate Texas from the tiebreaker. Even if TX plays and beats OSU, a win doesn't move them into top two. So TX should be eliminated from contention. Then, consider the other three who are all 1-1 vs each otherIf OSU, Texas, OU, ISU tie at 7-2. The 4 way round robin currently gets skipped due to OSU vs Texas not happening. The outcome of that game would have impacted who gets eliminated. So in that scenario skipping it makes sense.
ISU (2-1)
OU (2-1)
OSU (1-1)
UT (0-2)