By my count, 18 of them were. (That’s what the asterisks represent.)
And the next year, they drew in “passing zones” like they have in pretty much every track meet relay.
IIRC, the main problem was, it was an ABC show, and the NBC team felt that the penalty was because the producers “wanted” ABC to win, so they threatened to walk out of the rest of the events until the “runoff” was suggested.