@mjeii6 in order to complete each of the special events you need to make sure that on the early days you farm for materials on all of the replayable races and use any extra cash to buy needed materials from the special event store, if you dont do this you wont be able to reach a high enough pr to complete the later races
also during day one and day two once the chapter is complete most seasoned players will use up their event tickets to deliberaterly lose replayable races to earn special event credits, as a lost race does not count as one of the 3 replays
for example, if there is a replayable time trial race, then use up any extra tickets to continually run that race, drifting as much as possible but dont cross the finishing line before the time runs out, the race counts as a failed race, you'll earn the credits for drifting/perfect starts/near misses etc but it wont use up one of the 3 replays
you'll then be able to build up event credits to use in the event store
the best races to do this on are nitro and airborne races, but any race will do as long as you generate as many credits as you can