[megalimey]

here is some more info
In the event of a rain out the rescheduled game is part of a single admission double header, Tickets for the game originally scheduled to be played on the double header the actual game date ticket will have priority over the rain check and the rain check can either be: (i) "exchanged" for the same priced ticket for the single admission double header, subject to availability; or (ii) exchanged for a same priced ticket for any regular season home game of the Club within 12 months of the originally scheduled Game, subject to availability.

, ticket would have to be "exchanged" and not able to be just presented at turnstiles ,this was done to avoid over capacity or have two people fighting over the same seat imagine the chaos if that was the case