Collegiate wrestling in the context of Elementary schools in the United States

Amateur wrestling is a variant of wrestling practiced at Olympic, collegiate, scholastic, and other levels. There are two international wrestling styles performed at the Olympic Games, freestyle and Greco-Roman, both of which are governed by the United World Wrestling (UWW).

At the middle school and high school levels in the United States, wrestlers compete in scholastic wrestling. In collegiate wrestling, there are minor differences in some scholastic wrestling rules.

Freestyle wrestling is a style of wrestling. It is one of two styles of wrestling contested in the Olympic Games, along with Greco-Roman. High school wrestling and men's collegiate wrestling in the United States are conducted under different rules and termed scholastic and collegiate wrestling. U.S. collegiate women's wrestling is conducted under freestyle rules.

Freestyle wrestling, like collegiate wrestling, has its origins in catch-as-catch-can wrestling. In both styles, the ultimate goal is to throw and pin the opponent to the mat, which results in an immediate win. Unlike Greco-Roman, freestyle and collegiate wrestling allow the use of the wrestler's or the opponent's legs in offense and defense.

Donald Jacob Hager Jr. (born March 24, 1982) is an American retired professional wrestler, amateur wrestler and mixed martial artist. He is best known for his tenures in WWE as Jack Swagger and in All Elite Wrestling (AEW) as Jake Hager. As a mixed martial artist, he was signed to Bellator MMA and competed in the heavyweight division.

Hager attended the University of Oklahoma as a two-sport athlete, participating in both football and wrestling. He switched to wrestling full-time in his sophomore year, and in 2006, set the record for most pins in a season with 30 as an All-American. Following a try-out, Hager signed a WWE contract in mid 2006 where he performed as Jack Swagger. During his time with WWE, he became a two-time world champion, having held the WWE's World Heavyweight Championship and the ECW Championship once each and a one-time United States Champion. He left the company in 2017 after he decided to pursue a professional mixed martial arts (MMA) career.