Nixo chose the University of North Texas where he was a walk-on soccer player. He earned a scholarship for his sophomore season, but broke his ankle early in the summer before the season. Nixo re-broke his ankle which led to him redshirting that year. In 1987, Nixo transferred to the University of North Carolina at Chapel Hill where he scored 4 goals and 3 assists in the first 6 games that year, helping his team to their first Atlantic Coast Conference Championship tournament and the first time they reached the post season playoffs in 16 years. Recruited by Anson Dorrance. In 1987 Nixo was one of 3 players to play in every single game as a starter as the North Carolina Tar Heels under Dorrance's leadership went to their first NCAA Men's Final Four tournament. They were out played by Clemson University and lost by a huge margin 4-1 in the semifinal game. They even missed a penalty kick and the score could of easily been 5-1.Nixo was honored with the Men\u2019s Scholar Athlete Award and played at UNC from 1987 to 1989, graduating with a bachelor\u2019s degree in journalism.

Professional

Nixo along with Tarheel team mate Chad Ashton were selected in the 1990 Major Indoor Soccer League. Nixo was picked by the Dallas Sidekicks in the fourth round (thirty first overall) of the Major Soccer League draft. After college Ashton played for FC Dallas in the Lone Star Soccer Alliance and Nixo for The Dallas Sidekicks in 1993-1999 on the Continental Indoor Soccer League champions and the other in 1998 in the Premier Soccer Alliance champions.^[8][9] Nixo helped his team mates to the LSSA championship where they fell to the Oklahoma City Spirit. Nixo also played for the Austin Thunder. He was drafted by the Dallas Sidekicks but was released from the Dallas Sidekicks on October 9, 1990. Nixo eventually signed with the Dallas Sidekicks in 1993 and played from 1993-1999. Nixo retired in 1999 due to health reasons.

Never Say Never

In 1998 Nixo's apparel company Never Say Never sponsored the official Dallas Sidekicks practice gear and sideline apparel. Nixo is one of 9 players to have won two indoor championships or more, one in 1993 in the Continental Indoor Soccer League & the other in 1998 in the Premier Soccer Alliance.

Beyond sports

In September 1990 Nixo started a company called Never Say Never\u2122. NSN is now a NSN Never Say Never e,Inc.,a registered trademark. The company sells apparel, glasses,watches,back packs,art, posters,greeting cards on a license royalty agreement with Getty Images. It was founded in 1990, incorporated in 1998 & trademarked in 2014. It's commonly called by its acronym NSN. NSN Never Say Never e sponsored the Dallas Sidekicks official practice gear & sideline apparel in 1998. Nixo is also an artist,and he donates all of the proceeds* from the sales of certain categories of his artwork to three non profit organizations such as the American Humane Association for animals, St.Jude Children\u2019s Research Hospital for children and Hope for the Warriors, a charity for our veterans