Dan who writes here on Mets Police says there are two more pre-sales:
Monday, May 3rd for Mets Club members
Tuesday, May 4th for CitiCard holders
and the general public presale for whatever’s left is:
Thursday, May 6 at 10:00 a.m. at Mets.com, LosMets.com and (718) 507-TIXX.
Fans can purchase a maximum of six tickets total for games at Citi Field on Friday, May 21 at 7:10 p.m., Saturday May 22 at 7:10 p.m., and Sunday, May 23 at 8:05 p.m. For example, fans may purchase two tickets to the three games, three tickets to two games, six tickets to one game or any other combination totaling six tickets across the series.