Question: Which American kickboxer based in Scottsdale Arizona has been beaten in world championships by Changpuek Kiatsongrit?

Context paragraphs:
American Kickboxer 2: American Kickboxer 2 is a 1993 Filipino/American martial arts film directed by Jeno Hodi and starring former world champion kickboxer Dale "Apollo" Cook and martial artist and actor Evan Lurie.  Despite the title, it is not related to the 1991 original American Kickboxer.

Danny De Bie: Danny De Bie (born 23 January 1960 in Beersel, Belgium) is a former professional Belgian cyclo-cross cyclist.  Both De Bie's brothers Eddy and Rudy also were cyclists.  Danny de Bie won the silver medal at the World championships in 1987 at the age of 27.  De Bie achieved several successes on the road but started to focus on cyclo-cross full-time after taking the silver medal in 1987.  He went to Switzerland which was at that time the main place for cyclo-cross races.  Two years later he achieved that.  The World Cyclo-Cross Championships parcours in Pont-Château of in 1989 was a course that was suited to him.  De Bie was able to cycle up a tough climb of almost 100 metres where his opponents such as Adri van der Poel had to walk and as a result De Bie was able to make a gap every time he went over the climb.  After winning the rainbow jersey, De Bie became one of the best cyclo crossers of the world with a win in the Superprestige classification and increased popularity for the sport in Belgium.  In 1991 De Bie was suspected of possible tampering with a doping control after a Superprestige race in Zillebeke and he was not allowed to take part in the World Championships that year in Gieten.  De Bie was Belgium cyclo-cross champion for three years in a row and then beaten by Paul Herijgers.  De Bie in his career won 11 Superprestige races.  After his career he worked as directeur sportif for the Spaar select and Fidea Cycling Teams.

Maurice Smith (kickboxer): Maurice L. Smith (born December 13, 1961) is a retired American kickboxer, mixed martial artist, and a member of the UFC Hall of Fame.  He held the world light heavyweight and heavyweight championships from the World Kickboxing Association, World Kickboxing Council, International Sport Kickboxing Association and other promotions, as well as mixed martial arts champion for Battlecade Extreme Combat 3 and 4 champion as well as Ultimate Fighting Championship 13 and 14 champion.  A professional competitor since 1980, Smith has formerly competed in kickboxing for the companies All Japan Enterprise and K-1, Pancrase, RINGS, PRIDE, Strikeforce, International Fight League and RFA.

Kevin Rosier: Kevin Rosier (January 6, 1962 – April 14, 2015) was an American kickboxer, boxer and mixed martial artist.  He had much success as a kickboxer, winning a number of titles, but did not transition particularly well into the world of boxing and was mostly seen as a journeyman fighter.  Notably, he also took part at the inaugural Ultimate Fighting Championship event in 1993 where he reached the semi-finals.

American Kickboxer: American Kickboxer (also known as American Kickboxer 1) is a 1991 South African martial arts film directed by Frans Nel and written by Emil Kolbe, based on an original story by the film's lead actor, John Barrett.

2016 Rising Phoenix World Championships: The 2016 Rising Phoenix World Championships was an IFBB Wings of Strength female professional bodybuilding competition and held in conjunction with the IFBB Arizona Pro.  It was held on September 10, 2016 at the Talking Stick Resort in Scottsdale, Arizona.

Scottsdale Arabian Horse Show: The Scottsdale Arabian Horse Show is the world's largest Arabian horse show, held annually in Scottsdale, Arizona.  Beginning in 1955, the show has grown from 50 horses and a dozen trainers/owners to more than 2200 horses and over 1300 owners.  Called the "Super Bowl of the Arabian World", it represents the first leg in the Arabian Triple Crown, the other two major competitions being the Canadian and U.S. National Arabian Championships.  In addition to the competition, the show acts as a fundraiser for the Arabian Horse Association of Arizona, which has donated millions of dollars to charity from the proceeds of the show.

2017 Rising Phoenix World Championships: The 2017 Rising Phoenix World Championships was an IFBB Wings of Strength female professional bodybuilding competition and held in conjunction with the IFBB Arizona Pro.  It was held on September 9, 2017 at the Talking Stick Resort in Scottsdale, Arizona.

Rick Roufus: Rick John Roufus (born June 3, 1966) is an American kickboxer, fighting out of Pound Gyms in Scottsdale, Arizona.  He is one of the most famous kickboxers in America, and has also competed professionally in boxing and mixed martial arts.  An accomplished professional fighter throughout his competitive career Roufus has won multiple world championships across the globe in several weight classes, he was world champion as a super middle weight, light heavyweight and heavyweight.

Changpuek Kiatsongrit: Changpuek [English: Crazy Elephant] Kiatsongrit (Thai: ช้างเผือก เกียรติทรงฤทธิ์ , born October 13, 1966) is a retired Thai Muay Thai fighter.  He is credited as being one of the first Muay Thai fighters to go abroad and fight other fighters of other martial arts styles, often stronger and heavier than himself, bringing to the world an understanding of the effectiveness of Muay Thai.  Changpuek is a seven time world champion who has fought some of the world's best fighters at middleweight to heavyweight and has wins against world class fighters such as Rob Kaman (x3), Rick Roufus, Peter Smit and Tosca Petridis.  After ending his career as a professional fighter while working for Sitpholek gym in Pattaya, Thailand, he continued his employment at that gym as a Muay Thai trainer.

Supporting paragraphs: Changpuek Kiatsongrit Rick Roufus
Answer: Rick Roufus