User blog comment:Ininjago/L16 - iNinjago Announcments (Part 1)/@comment-27837351-20170721230637/@comment-27837351-20170721233129

Well I don't know much about what they could be so why don't you say them.

Also, the Race Tracks are just the Battle Arenas, but set up with race tracks which you use a vehicle to ride in rather than fighting others. Of course, in Race Tracks, you race!