Vítor Vianna is a Brazilian mixed martial artist, who has competed in mixed martial arts events in Brazil, Holland, and in the United States.
 He is the #3 ranked Middleweight prospect in the world.
 He is also ranked as the #69 Light Heavyweight fighter in the world by FightMatrix.com.
 This ranking is due to certain Catchweight fights he has participated in.
 He is also a highly decorated Brazilian Jiu-Jitsu competitor and is a; 2 time World Champion, 6 time Brazilian National Champion, 15 time State Champion, and ADCC NO GI Brazilian trials runner-up.
 Vianna is signed to the Bellator Fighting Championships.
Barb Honchak (born August 30, 1979) is an American professional female mixed martial artist.
 She is the first Invicta FC Flyweight Champion.
 She has four wins in the Invicta FC promotion and holds notable victories over Vanessa Porto, Roxanne Modafferi, Leslie Smith and Felice Herrig.
Mário Neto, known as Sukata (born 1974 in Brasília, Brazil) is a Brazilian mixed martial artist with a record of 12-5.
 He is now in his 15th year as a mixed martial artist with a victory over UFC veterans Seth Petruzelli, Travis Fulton and Gary Goodridge.
 Neto last defeated Dave Keeley by submission due to a guillotine choke at RFC - Recife Fighting Championship 5 in 2011.
Renzo Gracie ( ; ] ; born March 11, 1967) is a Brazilian mixed martial artist and Brazilian Jiu-Jitsu practitioner.
 A member of the Gracie family of Brazil, Renzo is a 6th Degree Black in Brazilian Jiu-Jitsu under Carlos Gracie Jr..
 He is the son of Robson Gracie, grandson of Carlos Gracie, nephew of Carlos Gracie, Jr. grandnephew of Helio Gracie, and the 1st cousin once removed of Royce Gracie.
 In mixed martial arts, Renzo has competed in the Ultimate Fighting Championship, Pride Fighting Championships, K-1, RINGS, and International Fight League (head-coaching the New York Pitbulls).
 He holds notable victories over five former UFC Champions: Frank Shamrock (UFC Light Heavyweight Champion), Carlos Newton (UFC Welterweight Champion), Pat Miletich (UFC Welterweight Champion), Maurice Smith (UFC Heavyweight Champion), and Oleg Taktarov (UFC 6 Tournament Winner)
Vanessa Alessandra Teixeira Porto (born March 16, 1984) is a Brazilian mixed martial artist and amateur boxer who competes in the Invicta Fighting Championships flyweight division.
 She is currently the #2-ranked 125-pound female fighter in the world according to the Unified Women's MMA Rankings.
Wallid Farid Ismail (born February 23, 1968) is a Brazilian mixed martial artist and promoter.
 Ismail holds a black belt in Brazilian jiu-jitsu (BJJ) under Carlson Gracie, and is an IVC mixed martial arts world champion and BJJ Champion.
 In mixed martial arts, Ismail also competed for the UFC, and PRIDE, and most of wins in the sport came by way of submission.
Anderson da Silva (] ; born April 14, 1975) is a Brazilian mixed martial artist and former UFC Middleweight Champion.
 Silva holds the longest title streak in UFC history, which ended in 2013 after 2,457 days, with 16 consecutive wins and 10 title defenses.
 He has 13 post-fight bonuses, the second most in UFC history.
 UFC president Dana White and several mixed-martial-arts publications have called Silva the greatest mixed martial artist of all time.
 He is currently ranked the #6 contender in official UFC middleweight rankings.
Gustavo Falciroli (born 13 December 1982) is an Australian/Brazilian mixed martial artist.
 Brazilian born Gustavo has lived in Australia since 2007 and is an Australian citizen.
 Gustavo Falciroli is the reigning Cage Fighting Championship and Australian Fighting Championship bantamweight champions, one of the most decorated mixed martial arts fighters in Australia and a Brazilian jiu-jitsu black belt third degree.
Antônio Rogério Nogueira (] ; born June 2, 1976), better known as Minotouro or Little Nog, is a Brazilian mixed martial artist currently signed with the UFC.
 He is the twin brother of Antônio Rodrigo Nogueira, the "Minotauro", earning Rogério the nickname "Minotouro".
 A proficient amateur boxer, he was the 2006 and 2007 Brazilian Super Heavyweight Champion.
 He also won a bronze medal in the 2007 Pan American Games.
 As of April 1, 2016, he is #10 in official UFC Light Heavyweight rankings.
Jonathan Hamm (born October 14, 1985) is a former standout amateur boxer, actor, football player and current mixed martial artist.
 Hamm was the #1 Super-Heavyweight Amateur boxer in the United States in 2011 after winning the 2011 U.S. Nationals.
 Hamm was an alternate in the super-heavyweight division of the 2012 London Olympic Games for the U.S. Hamm earned Black College All-American, 1st Team All Conference, 1st Team All-Region and The Marion E. Jackson Defensive Player of the Year in 2006.
 Hamm is originally from Atlanta, Georgia but now lives and trains out of Jackson's Submissions Fighting in Albuquerque, New Mexico.
 His manager is Malki Kawa, founder of First Round Management out of Miami, Florida who houses UFC stars Jon Jones, Benson Henderson, Carlos Condit, Miesha Tate and Frank Mir.

Question: Which Brazilian mixed martial artist and amateur boxer does Barb Honchak hold victory over?
Answer: Vanessa Porto