Question: Cleopas Ncube was ranked highly in the International event named after which American freestyle wrestler?

Context paragraphs:
Dave Schultz (wrestling): David Leslie "Dave" Schultz (June 6, 1959 – January 26, 1996) was an American Olympic and world champion freestyle wrestler, a seven-time World and Olympic medalist.  He coached individuals and teams at the college level and also privately.  He was shot and killed by John Eleuthère du Pont, a millionaire philanthropist who sponsored the private Foxcatcher wrestling team at an amateur sports center, known as Foxcatcher Farm, he set up on his estate in Pennsylvania.

Reece Humphrey: Reece Weslee Humphrey (born July 31, 1986 in Bloomington, Indiana) is an American freestyle wrestler who competed for the men's freestyle 60 kg at the World Wrestling Championships 2013 in Budapest, Hungary.  He was eliminated in the quarterfinal rounds, after being defeated by Iran's Masoud Esmaeilpour, based on the decision score 8-9.  He is national USA wrestling champion 2015.  New York athletic club International Open champion 2011.  Humphrey is also Indiana high school state champion, Freestyle and Greco-Roman national champion 2x All-American at The Ohio State University (2009 runner-up and 3rd 2010) In 2015 World Wrestling Championships he won to world bronze medalist Daulet Niyazbekov of Kazakhstan, but in second round he lost to Mongolian young wrestling prospect Batboldyn Nomin, Batboldyn reached to the final, in Repechage round 1 Humphrey lost to bronze world medalist Bajrang Punia of India.

Henry Cejudo: Henry Carlos Cejudo, (born February 9, 1987) is an American freestyle wrestler, Olympic gold medalist, mixed martial artist and author.  He became an Olympic gold medalist at 21 years old, the second youngest American wrestler to do so (Kyle Snyder became an olympic champion at 20 years old at the 2016 Rio Games).  Cejudo debuted in the bantamweight division of the Ultimate Fighting Championship in December 2014 at .  As of March 9th, 2017, he is #2 in the official UFC flyweight rankings.

Angel Cejudo: Angel Cejudo is an American freestyle wrestler who won the Dave Schultz Memorial International freestyle wrestling tournament in the 132-pound weight class on Tuesday, February 5, 2008.

Ben Peterson: Benjamin Lee "Ben" Peterson (born June 27, 1950) is a retired American freestyle wrestler.  He competed at the 1972 and 1976 Olympics and won a gold and a silver medal, respectively.  As a college wrestler, Peterson was a two-time NCAA champion at Iowa State.  He founded the "Camp of Champs," which brought in Olympic wrestlers to train with high schoolers.  Peterson also coached wrestling at Maranatha Baptist Bible College.

Jimmy Jackson (wrestler): James Earl Jackson (July 28, 1956 – June 17, 2008) was an American freestyle wrestler, who competed at the 1976 Summer Olympics.  He was born in Windsor, Ontario, Canada.  At the 1979 Pan American Games he finished first in the freestyle unlimited category.  At Oklahoma State, he was a three-time All-American champion at heavyweight.

Josiah Henson (wrestler): Josiah "Joe" Henson (24 February 1922 – 4 April 2012) was an American freestyle wrestler and a career U.S. Navy officer.  In 1952 he won the AAU wrestling championships without losing a single point and was named the tournament's outstanding wrestler.  The same year he won an Olympic bronze medal.  Henson attended every Summer Olympics from 1952 to 2000 in various capacities, as a competitor, referee, member of the U.S. Olympic Committee, and acting president of the World Taekwondo Federation.  He served a four-year term as chairman of the U.S. Olympic Wrestling Committee and later became the AAU president.  In 2006, he was named a distinguished member of the U.S. National Wrestling Hall of Fame, joining his elder brother and former Naval Academy Assistant Wrestling Coach Dr. Stanley W. Henson.  He was elected to the Eastern Intercollegiate Wrestling Association Wrestling Hall of Fame in 2012.

Dennis Fitzgerald: Joseph Dennis Fitzgerald (March 13, 1936 – January 14, 2001) was an American freestyle wrestler and football player and coach.  Fitzgerald played college football as a halfback at the University of Michigan and was selected as named the most valuable player on the 1960 Michigan Wolverines football team.  He holds the University of Michigan record for the longest kickoff return at 99 yards.  Fitgerald also competed as a wrestler, winning Big Ten Conference championships in 1960 and 1961 and winning a gold medal representing the United States as the 1963 Pan American Games in São Paulo.

Cleopas Ncube: Cleopas Ncube (born November 21, 1983) is a Canadian wrestler.  He finished in 4th place in the 70kg event at the 2014 World Wrestling Championships, losing the bronze medal final to Ali Shabanau of Belarus.  He also ranked among the best in several international competitions, including the Dave Schultz International.

Victoria Anthony: Victoria Anthony is an American freestyle wrestler, and two-time junior world champion, ranked USA's #1 ranked at 48 kg.

Supporting paragraphs: Cleopas Ncube Dave Schultz (wrestling)
Answer: David Leslie "Dave" Schultz