Anyone who is part of a match in a series can reschedule it. This can be done both via the app and the web. Simply go to the match and from there you can manage the booking. You will find the reschedule button at the bottom once you are in the booking. The available times for rescheduling are determined by the venue where the series match is held.

Please note that you cannot reschedule a match that has already passed. How far in advance of the match start time you are allowed to reschedule, is determined by the venue.