Erik Koch (born October 4, 1988) is an American mixed martial artist who currently fights as a featherweight in the Ultimate Fighting Championship. As of May 2012, Erik Koch is ranked as the #15 featherweight fighter in the world by Fight Matrix.

Koch enrolled in Taekwondo classes at the age of four piquing his interest in MMA. With help from his older brother, Keoni, who helps run an MMA gym in Eastern Iowa with Dave Sherzer (Hard Drive MMA), Erik started MMA style striking and grappling before the age of 14. Koch would later drop out of Washington High School to pursue a professional career in Mixed Martial Arts.

Koch made his professional MMA debut in 2007. Fighting primarily in Iowa, he amassed an undefeated streak of 8-0 before being signed to World Extreme Cagefighting. Koch is currently ranked as the #6 featherweight fighter in the world by MMAWeekly.

He was scheduled to fight Wagnney Fabiano at WEC 43 on September 2, 2009, but was forced to withdraw from the bout due to an undisclosed injury while training. Koch was replaced by WEC newcomer Mackens Semerzier. Now Koch made his WEC debut against Jameel Massouh on December 19 for WEC 45. Koch defeated Massouh via unanimous decision.

Jeff "Duke" Roufus (born February 19, 1970) is an American former kickboxer who is now one of the top trainers as head coach of the Roufusport competition team based in Milwaukee, Wisconsin, USA. He is one of the most recognizable striking coaches in North America, and is considered to be one of the top trainers of Muay Thai outside of Thailand.

Duke Roufus started training in martial arts at the age of 4 and is the younger brother of legendary kickboxer Rick "The Jet" Roufus.

His professional kickboxing and Muay Thai career saw him collect a number of titles including the W.K.A. North American Super Heavyweight Championship, W.A.K.O. World Super Heavyweight Championship, W.K.B.A. World Super Heavyweight Championship and the K.I.C.K. World Super Heavyweight Championship during the 1990s.

Duke won the IKF International Kickboxing Federation Pro Muay Thai Rules World Super Heavyweight Title on December 4th, 1998 in Milwaukee Wisconsin, USA over Hiriwa TeRangi of New Zealand by unanimous decision 50-43 on all 3 judges cards.

Ricardo Alejandro Lamas (born May 21, 1982) is an American mixed martial artist who currently fights as a featherweight in the Ultimate Fighting Championship organization. He trains with Team Top Notch in Elmhurst, Illinois. Lamas currently holds a brown belt in Brazilian Jiu-Jitsu under 2007 World Nogi jiu jitsu champion Daniel Valverde.

Lamas' father is Cuban and his mother is Mexican. The flags of these two countries are often displayed on his clothing during his fights.

Lamas graduated with a degree in exercise science from Elmhurst College in 2005, where he was a member of the men's wrestling team and earned All-American honors at the NCAA Division III Men's Wrestling Championships at 157 lbs. During his collegiate wrestling career (2001–2005), he racked up over 100 wins. He was also a two-time CCIW Champion, and was named the CCIW's "Most Outstanding Wrestler" during the 2003-04 season. Lamas returned to Elmhurst after graduation to serve as the assistant men's wrestling coach.

On March 1, 2009, Lamas made his WEC debut at WEC 39 in Corpus Christi, Texas against IFL and WEC veteran Bart Palaszewski. Lamas took the fight with 4 days notice. Lamas controlled Palaszewski with superior wrestling and scored with excellent ground-and-pound to win a unanimous decision victory over the more experienced fighter. Lamas suffered his first loss against Danny Castillo at WEC 42 on August 9, 2009.

Dustin Glenn Poirier (born January 19, 1989) is an American professional mixed martial arts fighter, currently competing as a featherweight in the Ultimate Fighting Championship. He is currently ranked #7 in the Featherweight Division by ESPN.

Poirier turned professional in 2009, quickly compiled a record of 7-0, competing mostly in regional promotions across the Southern United States.

Poirier was defeated in his first WEC fight by Danny Castillo via decision on August 18, 2010 at WEC 50.

Poirier defeated Zach Micklewright via first round TKO on November 11, 2010 at WEC 52.

In October 2010, World Extreme Cagefighting merged with the Ultimate Fighting Championship. As part of the merger, all WEC fighters were transferred to the UFC.

After the UFC/WEC merger, newly crowned UFC Featherweight Champion Jose Aldo was set to make his first defence against No. 1 contender Josh Grispi at UFC 125. Aldo then had to withdraw from the bout due to a back injury on November 23, 2010. Poirier agreed to step in and face Grispi at the event on January 1, 2011. Poirier won the fight by unanimous decision.

Eric Otto Koch (born 31 August 1919 in Frankfurt, Germany) is a Canadian author, broadcaster and professor.

Koch was born in 1919 into a prominent assimilated German Jewish family. His grandfather was a court jeweller and his father, was an officer in the German Army during World War I.

In 1935, after the Nazis took power, he and his family fled to England as refugees. Koch continued his studies at Cranbrook School in Kent, England before enrolling at Cambridge University to study law. In 1940, he and other Germans resident in Britain were detained as enemy aliens. Koch was deported to Canada where he remained interned until 1941 when he and most of his fellow internees were recognised by the government as "victims of Nazi aggression" and released. Koch continued his studies at the University of Toronto where he completed his law degree.

In 1944, he was recruited to join the German Section of Canadian Broadcasting Corporation's new International Service broadcasting programmes from Montreal to Germany, initially as part of Canada's psychological warfare campaign during World War II and subsequently as part of efforts to educate Germans in democracy. Koch remained with the CBC for 35 years serving from 1953 to 1967 as a member of the Department of Talks and Public Affairs in Toronto. He was promoted in 1967 to Area Head, Arts and Science and was responsible for the creation of a large number of radio and television programmes. From 1971 to 1977, he served as regional director in Montreal.