Pace Lap Progress bar on walks or runs

[KatherineNY]

On the Charge 5 and Charge 6, when I look at the details of walk or run under Pace laps are progress bars to each lap.

I'm trying under the point of the green color bars to each lap.  What is it suppose to represent? 

Visually, if I completed a lap, I thought the progress bar would be full to the end.  There are laps where the green colored bar doesn't reach the end (all the way to the right) and another lap/mile starts.

So what does each lap's colored bar mean?  

*I tried to insert a screen shot of my exercise but it's not letting me post with it.

[KatherineNY · Accepted solution]

Figured out the answer to my own question thought I'd share in case other new users may have the same. 

The Pace Lap bars show the speed of each lap with the fastest time being a complete and filled-in bar.  For the other laps, slower time would be a lesser completed bar.