This step is pretty easy. Simply use the New File feature to create
yourself a data file to store all of the data for a particular race.
For each new race, you would create a new data file. You can then
look back over previous races and see how your track and race
crew have been performing over time.
During the race, you can backup your data. GrandPrix
Race Manager does make it hard to inadvertently delete data and
will give you the option of backing up the data before any deletion.