GapTimeLast(resultID;rankID;text last;time format) calculates the gap time between a participant and the last participant (max rank at the time of calculation). The resultID determines which result to consider; the rankID determines who is the last athlete; text last is the text to show for the last athlete; and time format specifies how to format the gap time. For example:

GapTimeLast(1;2;"--";"+m:ss,kk") 

Using the default Results (Result ID 1 = Finish Time) and Ranks (Rank ID 2 = MFRank) this would return the time to the last athlete of the same gender based on finish time.

The third and fourth parameters can be omitted. "-" and "+HH:MM:ss,kk" are the default values.