You will need to work once for each of your entries (Doubles = 2 entries, which means you work twice).
There are several scenarios that affect how doubles drivers run/work:
Three Heat Events
If the event has three heats, you must work one work assignment in the morning or during the event
You must pack the trailer at the end of the event. (No exceptions)
Two Heat Events
If the event has only two heats, you must:
Running Doubles does NOT inherently grant you rights to morning work. Morning work assignments are still assigned based upon a separate first come/first served basis. SASCA BOD determines if Doubles will be offered after online registration closes before the event date. SASCA BOD reserves the right to cancel doubles entries for any reason. Upon cancelation on event day, and if attendees have already paid for doubles entries, refunds will be given for Doubles entries.