The My Strokes Gained page shows the current season by default. Seasons coincide with a calendar year: January 1 to December 31st.
To see a previous season’s data and access Previous Rounds from past seasons, select the year from the Season pulldown menu in the upper right hand corner of the page.
The Zoomable Progress Graph is a little different than the other graphs, which are tied to a single season. This graph shows the current season and the previous season. Use the Season pulldown menu similarly to above in order to see a different pairs of seasons.