I tried to figure this out too, and am under the impression the appeal has already been denied:
A USA Track and Field appeal of the DQ was denied by a jury, meaning Hocker will not be in Wednesday’s final.
“We are disappointed by the decision to disqualify Olympic champion Cole Hocker from the 1500 meter final,” USA Track and Field said in a statement. “We believed we had grounds for an appeal and unfortunately, that appeal was denied.”