Brock Lesnar dominated Big Ten collegiate wrestling like no other athlete had from late 1998 to mid 2000. Dominating opponents left and right, he earned a reputation for disposing oppenents as quickly as they came, earning nicknames such as "Terminator" or "RoboCop", or insert your favorite indestructible force, 'cause it's been used.

Lesnar grew up on a farm near Webster, South Dakota. He took up wrestling and went from a 3rd place finish at the South Dakota prep championships to a 33-0 record in his senior year of high school. Choosing minute Bismarck Junior College in North Dakota, Brock first earned his keep by winning the Heavyweight bracket in the North Dakota State University's annual Bison Open Tournament by beating Brent Boeschans of Minnesota, a school that was/is a major force in the world of NCAA wrestling. In 1998, Brock won his 2nd straight Bison Open title, and became the Heavyweight (285 lbs.) bracket champion in the National Junior College Athletic Association (NJCAA), just before BJC discontinued its wrestling program due to financial cuts following the 1997-98 school year. Minnesota wrestling coach J Robinson watched Brock in awe at the Finals of the NJCAA and managed to sign him to transfer to Minnesota. In just 2 years at BJC, Brock had accumulated a 56-3 record.

Now as a member of the Minnesota Gophers, Brock seized the attention of Big Ten and NCAA wrestling fans with his chiseled, ripped physique and a Bill Goldberg-like dominance of opponents, going 24-1 in his first year, with his only loss coming from Iowa State's Trent Hynek). Wading through the competition, Minnesota won the Big Ten wrestling title in 1999, ending a 25 year win streak of arch-rival Iowa. Unfortunately, Lesnar lost in the finals of the NCAA Championships to Stephen Neal of Cal State-Bakersfield in a 3-2 decision that cost Minnesota a chance to be National Champions; arch-rival Iowa won instead.

In 2000, Brock and company wanted to prove that 1999 was no fluke. As he had in the past, Lesnar tossed aside all opponents, coasting to a 26-1 record (with his defeat at the hands of a close 5-3 decision from Iowa's Wes Hand) and ranked as the #1 heavyweight in the Big Ten. Brock avenged his loss by destroying the Heavyweight bracket at the NCAA finals, then defeating Hand with a 3-2 decision in overtime with an escape in the final match, achieving a lifelong dream by becoming an NCAA heavyweight champion. Overall, his career wrestling record is 106-5 (56-3 at BJC, 50-2 at Minnesota).

Now the WWF came calling. Recalling his many trash-talkings of Iowa and other various schools, and with the fast success of former Olympic gold medalist Kurt Angle, Brock was signed to a training deal with the WWF. He is currently in Kentucky, training for seasoning and character development work in the Ohio Valley Wrestling (OVH) organization, a WWF farm federation headed by Jim Cornette.

After competing at WM XX,he has decided,after a lucrative WWE career,to leave the sport and pursue a career in the NFL.He was recently given a contract by the Minnesota Vikings but it never panned out.

Lawsuit with WWE
Lesnar had previously signed a no-compete clause in order to be released from his contract with WWE, which prohibited him from working for any other sports entertainment or mixed martial arts companies before June 2010. Lesnar had anticipated leaving wrestling entirely, but his inability to secure a career in professional football led to him challenging this ruling in court.[58] WWE responded by demanding damages as a result of Lesnar allegedly breaching the agreement by appearing at a New Japan Pro Wrestling show in 2004.
In July 2005, the two sides dropped their claims and entered negotiations to renew their relationship. WWE had offered Lesnar a contract, but on August 2, 2005, WWE's official website reported that Lesnar had withdrawn from any involvement with the company. The lawsuit was then entered into settlement on September 21, 2005, but talks broke down.
On January 14, 2006, Judge Christopher Droney stated that unless WWE gave him a good argument between then and January 25, 2006, he would rule in favor of Brock Lesnar, giving him a summary judgment. This would have enabled Lesnar to work anywhere he wanted immediately. WWE was later granted a deadline postponement.
On April 24, 2006, World Wrestling Entertainment announced on their official website, WWE.com, that both parties had mutually come to a settlement and on June 12, 2006, a federal judge dismissed Lesnar's lawsuit against WWE after both parties requested for the case to be dismissed.

New Japan Pro Wrestling
On October 8, 2005, Lesnar won the IWGP World Heavyweight Championship in a three-way match at a New Japan Pro Wrestling show in the Tokyo Dome, which included the then-champion Kazuyuki Fujita and Masahiro Chono. He won the match by pinning Masahiro Chono after an F-5, which he had renamed the Verdict, since WWE owns the trademark on the F-5 name. After the match, he stated that this name was referring to his lawsuit against WWE. The match was his first pro wrestling match since leaving WWE. Lesnar is one of the few American wrestlers to have held this title. The first person to hold it was Hulk Hogan (also the first American to win a Japanese world wrestling title), and Big Van Vader.[67] On December 6, 2005 WWE filed a motion for a temporary restraining order to prevent Lesnar from continuing to work with NJPW, but the court did not grant it, and thus Lesnar had two non-title victories against Manabu Nakanishi and Yuji Nagata.Lesnar successfully defended his championship on January 4, 2006 against former champion Shinsuke Nakamura.
On January 13, 2006. WWE once again filed an injunction against Lesnar to stop him from defending the IWGP World Heavyweight Championship on March 19, but evidently this was not enforced (nor granted), as he would go on to have both a tag team match with Shinsuke Nakamura against Akebono and Riki Chôshû at the Sumo Hall on February 19, 2006 which was won after a Verdict to Chôshû.
On March 19, 2006 at the Sumo Hall, Lesnar retained his championship against former Sumo Wrestling Grand Champion Akebono when Lesnar hit him with the championship belt and a DDT. Lesnar went on to successfully defended his title against the winner of the New Japan Cup, Giant Bernard, on May 3, 2006 in Fukuoka. This was the first American vs. American title match in NJPW since Vader vs. Stan Hansen in 1990.
On July 15, 2006, New Japan Pro Wrestling announced that Brock Lesnar had been stripped of the IWGP Heavyweight Championship as he will no longer be returning to defend the title due to "visa issues". A tournament was held on July 16 to determine the new champion, which was won by Hiroshi Tanahashi, the man Lesnar was originally scheduled to face. Lesnar continued to possess the physical IWGP World Heavyweight Championship until late June 2007 when he faced Kurt Angle.

K-1 Hero's / Mixed Martial Arts
On April 28, 2006, Lesnar appeared inside the ring after the final match of K-1 Hero's Las Vegas and has since signed a deal with the K-1/Hero's. He is currently training with Minnesota Martial Arts Academy under Greg Nelson, coach to UFC Lightweight champion Sean Sherk and with University of Minnesota Head Assistant wrestling coach Marty Morgan.Brock Lesnar announced on August 12, 2006 in Las Vegas that he had joined the K-1 promotion. His first fight was on June 2, 2007 on the K-1 Dynamite!! USA show against Choi Hong-man of Korea.After the match was announced, Royce Gracie then announced that he would serve as Lesnar's trainer.In his first official MMA match, Brock defeated Min Soo Kim (Choi Hong-man was pulled from the match) by submission (via strikes) in under two minutes.

Inoki Genome Federation
On June 29, 2007, Lesnar defended his disputed IWGP World Heavyweight Championship against TNA World Heavyweight Champion Kurt Angle in a champion versus champion match. Angle defeated Lesnar with the Ankle lock to win the IWGP Third Belt Championship (which IGF and TNA recognize as the IWGP World Title, and NWA recognizes as the NWA Japan Championship and challenged him to an MMA fight.

Some of this info came from Wikipedia.ort