Red Line, Blue Line, Green Line, & Sometimes Purple/Yellow Lines
The red line will always be the racer.
The green line is the "Average" of the race per lap.
The blue line is the "Fastest of the Race" for every lap.
You will get the purple line if you are looking at the fastest racer/winner, just because blue and red will be combined and make purple.
The yellow lines (if enabled) will generate for every other racer/driver in the activity.
Some customers might only print in black and white causing the race results to look like the following - use the list above and best compare as you can slightly see the differences but on paper, it might look a bit harder to distinguish:
