Individual participants cannot reserve spots in the same start heat (=start time) for teammates to be able to register at a later time.
To guarantee that you can start at the same time (in the same heat) as your teammates, one person from your team can register the entire group (up to 10) for the same start time during a single checkout as long as there is enough availability in that heat for the entirety of the group.
For example, you can register a team of 6 participants at the same time, however if there is only availability for 5 more participants in that heat, you will need to select a new start time for your group that has enough availability.
Groups of 10 or more can purchase tickets, without pre-registered names, through our Group Sales team. Please contact firstname.lastname@example.org to discuss group package options.