The strokes gained trend graphs show a time series of your performance in each category over the last x rounds with the blue dots being your actual performance for that round and the blue line showing the rolling average of your last x rounds combined to that point.

If you are an amateur then the strokes gained figures shown are an indication of how many shots you gained or lost against the average expected performance of a scratch handicapper. If you are a professional then it shows this against the average expected performance of a PGA tour pro.

So for example, if you get a value for one of your rounds for strokes gained driving of -0.7 then that means the cumulative performance of all the drives you hit in that round were 0.7 shots worse off than the average performance of the category you are comparing yourself to.

The average scratch or professional performance is highlighted by the orange dotted line along the 0 point on the x-axis. In addition, the solid orange line shows the performance level you need to achieve in that category in order to reach the level of the benchmark you have set for yourself.