I have enjoyed, and have played seriously at one time or another, a lot of racquet game: tennis, table tennis, paddle tennis, badminton, and (most of all) squash. But I had to go to wikipedia to find out what this was :-)
It is apparently really popular here in the Bay Area.
Think there might be a league in town. Seems to be popular in the senior centers and senior communities.
My informal estimate of the age range among the 20 or so participants of yesterday is 52-82.
I should fit right in :-)