Throughout the history of mixed martial arts, the UFC has been a premier destination for the best fighters in the world. For almost three decades, the best mixed martial artists from around the world have competed in the octagon to prove they are among the best in the sport.

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Thousands of mixed martial artists have competed in the UFC during the past 28 years. Some notable fighters have only competed once on MMA’s biggest stage. While they may have been one-and-done inside the octagon, they did enough to have an impact on the sport and will be remembered for their efforts.

10 Rolles Gracie

Rolles Gracie

The UFC was put on the map following the impressive performance of Royce Gracie in the early days of the UFC. Throughout the years, other members of the famed Gracie Jiu-Jitsu family have fought in the octagon.

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After winning his first three MMA fights, Rolles Gracie was given an opportunity in the UFC. In 2010, at UFC 107, Gracie fought Joey Beltran in a heavyweight bout. In the second round of the fight, Gracie was defeated by a technical knockout. This would be Gracie’s only UFC fight. He went on to fight eight more times, with his last bout taking place in 2015.

9 James Toney

Randy Couture James Toney

“Lights Out” James Toney is one of the most decorated boxers in history. In 2010, Toney decided to take his elite boxing skills to the UFC.

In 2010, at UFC 118, Toney fought UFC Hall-of-Famer Randy Couture. Fighting a former, multi-time, UFC champion in your MMA debut is a daunting task for any fighter, but Toney accepted the challenge. In the end, Toney was quickly taken to the ground and was forced to submit in the first round.

8 Roger Gracie

Roger Gracie

Early in his MMA career, Roger Gracie was among the top prospects in the light heavyweight division. In just his third professional fight, Gracie submitted UFC legend Kevin Randleman in Strikeforce.

In his first seven fights, Gracie won six fights with notable wins against Keith Jardine and Scott Smith. His only loss came against former Strikeforce champion Muhammed Lawal. In 2013, Gracie’s impressive resume led to him fighting in the UFC. However, he lost a decision to Tim Kennedy in his UFC debut. This would unfortunately be Gracie’s only UFC appearance.

7 Tony Halme

Ludvig Borga

Tony Halme is most known for his time in the WWE back in the early 90s. Under the name Ludvig Borga, Halme was one of the company’s top bad guys playing a foreign menace who was going to take out the WWE’s American heroes. After a short stint in the WWE, Halme left the squared circle and stepped into the octagon.

In 1997, at UFC 13, Halme competed in the one-night UFC heavyweight tournament. In the first round, he fought a future hall of famer, making his MMA debut, Randy Couture. The future UFC Champion took just a minute to submit Halme. Couture went on to win the tournament and had a legendary career.

6 Renzo Gracie

Renzo Gracie

After a successful run in PRIDE Fighting Championship, Renzo Gracie made his only UFC appearance in 2010.

At UFC 112, Gracie fought former UFC Welterweight Champion Matt Hughes. Renzo was looking to get revenge for Royce Gracie after Hughes dominated the MMA legend at UFC 60 in 2006. While Renzo put up a much better fight, Hughes defeated him in the third round by technical knockout.

This would be Renzo’s only appearance in the UFC, he would not fight again until 2018 when he fought for ONE Championship.

5 Wallid Ismail

Wallid Ismail

Wallid Ismail has made a name for himself in the world of mixed martial arts by being a manager to some notable UFC names including UFC Flyweight Champion Deiveson Figueiredo. However, prior to being a manager and promoter, Ismail made one appearance fighting for the UFC.

In 1997, at UFC 12, Ismail fought Yoshiki Takahashi in a one-night lightweight tournament. Takahashi would go on to win the fight by judges' decision but was unable to continue in the tournament. Ismail fought for PRIDE FC after his only UFC appearance before having his last fight in 2002.

4 Tara LaRosa

Tara LaRosa

Tara LaRosa is a pioneer in women’s mixed martial arts. Throughout her career, she has shared a cage with and defeated notable MMA fighters such as Roxanne Modafferi, Julie Kedzie, Shayna Baszler, and former UFC title challenger Alexis Davis.

Despite this impressive resume, LaRosa has never had an official UFC fight, but she did compete in the octagon on The Ultimate Fighter. In the qualifying round of the tournament, LaRosa lost a decision to Sarah Moras and did not get to continue on the show.

3 Kit Cope

Kit Cope

Kit Cope has quite a resume, besides being a professional fighter, he appeared on popular reality shows Fear Factor and MTV’s True Life. He hosted the Spike TV series Wild World of Spike. Cope was also engaged to actress and former MMA fighter Gina Carano.

While he has many accolades outside the cage, he was not too successful in the sport of mixed martial arts. Cope made his only UFC appearance in 2005 at the second finale of The Ultimate Fighter. On that night, he was submitted by former Ultimate Fighter winner and UFC title challenger Kenny Florian.

2 Antonio McKee

Antonio McKee

With a 20-year MMA career, Antonio McKee is known for being a tough journeyman in the sport. He has an impressive MMA record that features 30 wins with only six losses. Despite an impressive resume, McKee only fought once in the UFC.

In 2011, at UFC 125, McKee lost a split decision to Jacob Volkman. Following the loss, McKee fought for other notable promotions such as DREAM, World Series of Fighting, and Bellator. McKee’s son, AJ, is one of the top featherweight fighters in the world and competes for Bellator.

1 Kazushi Sakuraba

Kazushi Sakuraba UFC
Kyle Terada-USA TODAY Sports

It is rare for a UFC Hall of Famer to only have one appearance in the promotion, but that is the case for MMA legend Kazushi Sakuraba.

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In 1997, Sakuraba made his only UFC appearance at an event in Japan. The event featured a one-night heavyweight tournament. Despite being less than 200 pounds, Sakuraba entered the tournament and won.

However, Sakuraba technically fought twice on the same night. In his first fight, the fight ended in a no-contest after the referee thought Sakuraba was knocked out, when in fact, he was going for a takedown. The other fight in the tournament was won by Tank Abbott, but he was unable to fight a second fight. As a result, Sakuraba fought Marcus Silveira again and won the fight by submission.