Raw data calculations can calculate a range of results automatically. When a timing point is selected a column Calculation will turn into a drop down box and you select among different Rules, which are described in the sub-sections.
A race with start and finish on the same timing system can be as easy as this:

Note again that in Raw Data Mode, you can change at any time the result settings or settings like Minimum Lap Time, Number of Laps, Finish Time Limit, Start Times, etc. The rules will be reapplied which may result in a different time value in the result. When using Raw Mode, you only need to make sure from the beginning to connect each timing system to the correct Timing Point.