A "tournament series" refers to a sequence of organized competitions where individuals or teams participate in multiple tournaments over a set period of time. Full definition
All of this would seem to point toward an arena shooter, hardly the biggest departure considering he's worked on the Unreal Tournament series. (wolfsgamingblog.com)
This new edition of the prestigious tournament series that will take place next month will have a huge prize pool. (geekreply.com)
The Unreal Tournament series is one example of such. (en.wikipedia.org)