Question: Rugged Maniac is an annual obstacle course race partnered with the owner of what NBA team?

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Rugged Maniac Results: This page lists the winners of Rugged Maniac, a 5K obstacle course race which has been running since 2010.  A number of participants hold records for multiple wins.

Rugged Maniac Phoenix: The Phoenix Arizona Rugged Maniac (or Rugged Maniac Arizona) 5K Obstacle Course event has been held annually in Arizona since 2011.  The event currently takes place at the Wild Horse Pass Motorsports Park in Chandler, Arizona, United States, on April 2nd 2016 and November 5th, 2016.

Rugged Maniac Chicago: The Chicago Rugged Maniac (or Rugged Maniac Milwaukee) 5K Obstacle Course event is currently held at CPX Sports, a paintball event venue.  It had previously been held at the Wilmot Mountain Ski Resort in Wisconsin, from 2012-2015.

Mark Cuban: Mark Cuban (born July 31, 1958) is an American businessman, investor, author, television personality, and philanthropist.  He is the owner of the NBA's Dallas Mavericks, co-owner of 2929 Entertainment and chairman of the AXS TV.  He is also one of the main "shark" investors on the ABC reality television series, "Shark Tank".  In 2011, Cuban wrote an e-book, "How to Win at the Sport of Business", in which he chronicles his experiences in business and sports.

Rugged Maniac Northern California: The Northern California Rugged Maniac 5K Obstacle Course event (or Rugged Maniac NorCal) has been held annually in Pleasanton, California since 2013.  The event currently takes place at the Alameda County Fairgrounds.

Rugged Maniac Toronto: The Toronto Rugged Maniac 5K Obstacle Course event (or Rugged Maniac Kitchener) debuted in Kitchener, Ontario in 2015.  The event currently takes place at the Chicopee Ski Club.

Rugged Maniac Virginia: The Virginia Rugged Maniac 5K Obstacle Course event has been held annually in Petersburg, Virginia since 2011.  The event currently takes place at the Virginia Motorsports Park, with two event dates yearly, in May and October.  As of 2015, Rugged Maniac Virginia was the largest single-day Rugged Maniac event in the US.

Rugged Maniac New Jersey: The New Jersey Rugged Maniac (or Tri-State Rugged Maniac) 5K Obstacle Course event has been held annually in New Jersey since 2011.  The event currently takes place at the Old Bridge Township Raceway Park (a motorsport venue) with a two-day event in July.

Rugged Maniac New England: The New England Rugged Maniac 5K Obstacle Course event has been held annually in Southwick, Massachusetts since 2010.  The event currently takes place at the Motocross Southwick MX339 (a dirt biking course) with a two-day event in September.

Rugged Maniac: Rugged Maniac is an annual obstacle course race, otherwise known as a mud run, hosted in multiple cities across the United States.  Participants run a 5 kilometer (3.1 mile) course with obstacles ranging from muddy water slides, crawling through tunnels, jumping over logs set on fire, and scaling large, curved walls.  Billionaire entrepreneur Mark Cuban is an investment partner with Rugged Maniac, after their appearance on season 5 of the hit ABC reality show Shark Tank.

Supporting paragraphs: Rugged Maniac Mark Cuban
Answer: Dallas Mavericks