Ms Ofili can appeal the ruling at the Court of Arbitration for Sport.
Duplantis cleared 6.26 metres to earn his 10th world record, adding a centimetre to the mark he established in retaining his Olympic title at the Paris Games earlier this month.
Coe retired from the sport with four Olympic medals to his name.
The Court of Arbitration for Sport and Switzerland Supreme Court had ruled that Semenya must artificially suppress her testosterone to compete in female races.
The governing body said the decision was taken to “protect the future of the female category.”
Ten Nigerians are part of 20 athletes declared ineligible to participate in the athletics events of the ongoing Tokyo 2020 Olympics for violating anti-doping rules.
