Sign in to Apex administration
Enter the address on your Apex account. A link comes by mail, and your authenticator gives the code.
This is the back of house. If you race, apexracetiming.com is where your outings are.
Lost your authenticator? Ask another administrator to revoke your grant and grant it again: the new link enrols a new one. With nobody else to ask, the bootstrap script on the box is the way back; there are no recovery codes.