Registration Overview Register On-Line Registration By Phone Register By Fax Register By Mail To register by fax using your Visa, MasterCard, American Express, or Discover Card, download and complete the registration form and fax it to us toll-free at 1-877-659-9919. Fax registrations are processed in a couple of hours, and you will receive an email confirmation as soon as your registration is processed. The registration deadline for the Dallas ZFOOTBALL 4 on 4 Flag Football Tournament is Tuesday, December 11th. For questions about the event, please email us at info@zfootball.com.