Race code should be the three letter symbol (eg "V17"), and should not include the 4-digit club/aggregate symbol. This could be a separate property read.

This also brings into question what to do with aggregate .UDP files. These could be fully read regardless, but the user should have some form of control as to whether all owners should be taken into consideration when calculating the race, or whether it should only be a certain club. Consider overloading the GetRace method or including an optional parameter.

RaceType enum currently uses "O" for marathon/2-day flights, while in actuality this is "A". This prevents them from being read in the .UDP library!