PLAYERS SECTION V - TOURNAMENT DRAWS AND SCHEDULING *See Section V.A.6.d - Withdrawal of a Seed for the procedures to be  followed when a seeded player withdraws from a Tournament. b.  Qualifying Singles  i.  Before the Freeze Deadline  ii.  After the Freeze Deadline but before Qualifying Sign-In Any such openings are filled by Next-In Qualifying Alternates based  on the WTA Rankings or Special Rankings used for Alternate Status.  Any such openings are filled by Alternates who have signed in with a  WTA Operations staff member or the Supervisor based on the On-site  Alternates Acceptance procedure set forth in Section V.A.1.b.iii. These openings are filled by On-site Alternates who were not  accepted into the draw based on the order determined at the  Qualifying Sign-In Deadline using the On-site Alternates Acceptance  procedure set forth in Section V.A.1.b.iii above. Players must have  signed in as set forth in Section V.A.1.b.iii to maintain eligibility for  any openings.  The first on-site Alternate must be ready to play within fifteen (15)  minutes of being called for a match. Matches will not be held for  Alternates still competing in another ITF or WTA Tournament.  iii.  After the Qualifying Sign-In  iv.  Additional Qualifying Wild Cards  If a Qualifying spot becomes available prior to the start of the last  qualifying match of the day, the Alternate will be determined by the  Sign-In for that day. However, where there are no Alternates signed  in and the match affected by the withdrawal is not scheduled for that  day, the following day’s Sign-In will be used to fill the vacant spot. If  a spot becomes available after the start of the last qualifying match  of the day/night, the spot will be filled by the highest ranked player  who signs in the following day. At Tournaments where there are no on-site Alternates, openings in  the draw may be filled by additional Tournament Wild Cards. Players/ teams waiting to get into the draw as additional Tournament Wild  Cards must:  68