Exchange
Hard Tickets
Etickets
Instant Delivery
mobile/will call/local pickup
StubHub
3 business days prior
If seats hidden, 24 hours prior, otherwise event time
90 minutes after event except MLB
mobile - 4 hours before.
Will call not allowed.
Local - must be LMS
TickPick
One shipping day before event, 2pm EST
Event start time or for west coast, 3 hours before event start
Not supported
As long as event page is live    
Gametime 
72 hours prior to event90 minutes before the event
Not supported
Not supported
SeatGeek
Not supported
Start of event
Not supported
Start of event
TicketEvolution    
As long as it's broadcast
As long as it's broadcast
Not supported
As long as broadcast
TicketNetwork
As long as broadcast, event time
As long as broadcast, event time
Not supported
As long as broadcast, event time
FanXchange
Start of event, must be able to be delivered
Start of event
Not supported
Start of event
TicketsNow/TM+TBDPDF - TBDBarcode - TBDTBD


StubHub MLB varies on team, most 2 hours before event, others 6 hours before or even event time.