Unfortunately I do keep finding more, so feel free to mention in the comments any pro fighters with three legit MMA wins without a loss that are documented on MMA fighter databases 12 2012. Here is a look at some notable fighters who went undefeated in 2012:
Mark Striegl (6-0 in 2012): The undefeated 12-0 Filipino fighter worked his way around the Pacific Rim submitting Harris Sarmiento, Robert Wusstig, Alcer Lozada, Marko Huusansaari, Mohd Al Hafiz and Ev Ting.
Andrey Koreshkov (5-0 in 2012): The Russian welterweight won the Bellator tournament and two other bouts in Bellator with KO's over TUF vet Kyacey Uscola, Taiwan Howard, Derrick Krantz, Jordan Smith, Marius Žaromskis and Lyman Good for the BW tourney title.
Alexander Volkov (5-0 in 2012): The lanky 6-7 heavyweight won the Bellator HW championship and tournament, defeating Ricco Rodriguez, Stefan Stankovic, Brett Rogers, Vinicius Kappke de Queiroz and Richard Hale. The Richard Hale championship fight was extremely slow, don't re-watch that.
Smealinho Rama (5-0 in 2012): The Canadian heavyweight got his career off to a perfect 5-0 in 2012. Rama registered submissions over Ryan Fortin, Jordan Tracey and Craig Hudson, while TKO'ing Lee Mein and Demetrius Seguin. Expect to see him in the MFC promotion this in 2013.
Jeff Monson (5-0-1 in 2012): The former HW ADCC champ bounced back from a crushing loss to Fedor in 2011 with 5 wins and a draw in 2012. Monson notched wins over Alexey Oleinik, Jim York, Denis Komkin, Alexander Emelianenko and Dong Gook Kang.
Matt Brown (4-0 in 2012): After going 1-4 in 2010 and 2011, Brown stormed through the competition in 2012, earning 3 TKO/KO's and pulling off a couple big upsets. Brown started the year TKO'ing Chris Cope, winning a unanimous decision over Stephen Thompson and TKO'ing Luis Ramos before upsetting Mike Swick via KO.
(Matt Brown Pictured)
Daniel Straus (4-0 in 2012): The wrestler won 4 times in Bellator beating Jeremy Spoon and Mike Corey before defeating Marlon Sandro for the featherweight tourney title. Straus tacked on an additional win at Bellator 78 by submitting BJJ black belt Alvin Robinson.
Jessica Eye (4-0 in 2012): Eye had an outstanding 2012, capped off with dominating Bellator champ Zoila Gurgel via submission. Her other wins were over Kelly Warren, Anita Rodriguez and Angela Magana.
Lyle Beerbohm (4-0 in 2012): Fancy Pants bounced back from 2 straight losses in 2011 with 3 submission wins and 1 decision win in 2012. Beerbohm defeated Cleburn Walker, Chris Ensley, Marcus Aurelio and Kenny Ento.
Trevor Prangley (4-0 in 2012): The grappler had a resurgence in King of the Cage in 2012, capturing their 205 pound title with a majority decision win over Tony Lopez. He notched 3 additional wins over Baga Agaev, Mike Cook and George Stork.
Joe Riggs (4-0 in 2012): The UFC veteran had a comeback year in 2012 with four finishes. He armbarred Aaron Brink before KO's over Shane Johnson, Josh Cavan and Chris Leyva.
Sergio Pettis (4-0 in 2012): Anthony Pettis' younger brother kept his undefeated career intact with victories over Mike Lindquist, Chris Haney, Tom McKenna and Jimmy Jones.
Benson Henderson (3-0 in 2012): Henderson will win most fighter of the year awards going 3-0 in 2012, winning the UFC lightweight title against Frank Edgar, and defending against Edgar and Nate Diaz.
Shah Bobonis (3-0 in 2012): The high energy fighter followed up his 2011 Bellator victory over Marcos da Matta with victories over Mexico's Rodolfo Rubio, Aaron Williams and the previously undefeated Cornelius Godfrey.
Stefan Struve (3-0 in 2012): The massive heavyweight showed off improved technical striking in 2012 with KO's over Dave Herman and Stipe Miocic while using his lanky frame to lock in an armbar over Lavar Johnson. He'll fight Mark Hunt at UFC on Fuel 8 next.
Mike Pyle (3-0 in 2012): The 37 year old had his best year as a professional with TKO's over James Head and Ricardo Funch and a nasty KO over Josh Neer.
Cub Swanson (3-0 in 2012): Seemingly injury free, Swanson was lights out in 2012, accurate and technical with his striking knocking out George Roop, Ross Pearson and Charles Oliveira.
Constantinos Philippou (3-0 in 2012): The surging 185 pound fighter thrust himself into title contention by notching 3 UFC wins with decisions over Court McGee and Riki Fukuda before TKO'ing Tim Boetsch.
Francis Carmont (3-0 in 2012): The lanky and powerful Carmont now has won 9 fights in a row, taking two dominating submission wins over Magnus Cedenblad and Karlos Vemola in the UFC before a lackluster decision over Tom Lawlor.
Chris Camozzi (3-0 in 2012): Camozzi bounced back from a 2011 decision loss to Francis Carmont to submit Dustin Jacoby, TKO Nick Catone and defeat Luiz Cane via decision in 2012.
Karl Amoussou (3-0 in 2012): The Strikeforce veteran traveled to Bellator to defeat Chris Lozano via rear naked choke, David Rickels via decision and then Bryan Baker via inverted heel hook to take the tourney title. The heel hook submission over Baker was one of the year's best.
Erik Perez (3-0 in 2012): The Mexican bantamweight excelled in 2012 getting three UFC wins including TKO's over Bryan Bloodworth and Ken Stone with a verbal armbar submission over John Albert.
Rick Hawn (3-0 in 2012): The Olympic judoka bounced back from a loss to Jay Hieron to take the 155 pound Bellator tourney title with KO's over Ricardo Tirloni and Lloyd Woodard before a decision win over Brent Weedman for the tourney title.
Rustam Khabilov (3-0 in 2012): The Sambo specialist made a statement in his first UFC bout, suplexing Vinc Pichel into oblivion. He had two other victories in 2012 came over Rodrigo Ribeiro and Jason Dent.
Maiquel Falcao (3-0 in 2012): The Bellator Season 6 middleweight tournament champ defeated Norman Paraisy, Vyacheslav Vasilevsky and Andreas Spang via unanimous decision in 2012.
Marcin Held (3-0 in 2012): The Polish submission grappler cruised to the final of the Bellator season 7 lightweight tournament. He submitted Derrick Kennington via heel hook before winning a decision over Murad Machaev and submitting UFC veteran Rich Clementi via toe hold. He next fights Dave Jansen for the Bellator LW tourney championship.
Dave Jansen (3-0 in 2012): The American WEC veteran picked up his 5th straight win in Bellator 2012 winning via decision over Jacob Kirwan and Ricardo Tirloni while submitting Magomed Saadulaev.
Tim Means (3-0 in 2012): The striker pushed his win streak to 10 with 2 UFC wins in 2012. He began the year TKO'ing Tye Brown before UFC wins over Bernardo Magalhaes and Justin Salas.
Marcos Galvao (3-0 in 2012): The BJJ blackbelt bounced back in 2012 taking the 135 pound Bellator tournament by defeating Ed West and Travis Marx by decision before TKO'ing Luis Nogueira.
Conor McGregor (3-0 in 2012): Pushing his win streak to 8 overall, McGregor picked up 3 wins in the Cage Warriors Fighting Championships in 2012. The CWFC featherweight champ submitted Dave Hill while earning KO's against Steve O'Keefe and Ivan Buchinger.
Josh Burkman (3-0 in 2012): Burkman bounced back from a 2011 loss to Jordan Mein with decisions over Koffi Adzitso and Gerald Harris with a guillotine choke win over Jamie Yager.
Daisuke Nakamura (3-0 in 2012): The grappling ace competed exclusively in Deep in 2012, TKO'ing Takafumi Ito before decision wins over Akihiro Gono and Yasuaki Kishimoto.
Melvin Manhoef (3-0 in 2012): The kickboxing powerhouse scored a devastating KO over Denis Kang at the Dream NYE show, KO'd Ryo Kawamura and a split decision over Jae Young Kim.
Will Brooks (3-0 in 2012): Brooks (8-0 overall) picked up his biggest win of his career on NYE as he won against Satoru Kitaoka via TKO in Dream, his other wins were against Drew Dober via decision and Taurean Bogguess.
Ryan Ford (3-0 in 2012): Ford won twice in Bellator, once in AMMA, KO'ing Ricky Goodell and Luis Santos before winning a decision over Kyle Baker.
Nick Newell (3-0 in 2012): The one-armed fighter improved his record to 9-0 with 3 wins in 2012, including victories over Chris Coggins, David Mays and Erik Reynolds to capture the XFC championship.
Eric Kelly (3-0 in 2012): The Filipino fighter won twice in One FC in 2012 against Jens Pulver and Bae Young Kwon before submitting Brad Terrey via armbar.
Georgi Karakhanyan (3-0 in 2012): Georgi picked up a win in Dream NYE to get his 3rd of 2012, earning a split decision over Hiroyuki Takaya. He also won a decision over Micah Miller and KO over Aaron Mobley.
Felice Herrig (3-0 in 2012): The Lil Bulldog had her best year in 2012, winning two decisions over Patricia Vidonic and one over Simona Soukupova in XFC.
Amy Coleman (3-0 in 2012): Coleman will look to get on some bigger shows in 2013, after picking up wins over Cara Dickey, Catie Dorman and Brandy Davis in 2012.
Michael Mucitelli (3-0 in 2012): Pushing his record to 4-0 in 2012, Mucitelli picked up two wins in Bellator over Matt VanBuren and Matthew Uhde and one over Eddie Hardison in Matrix Fights. All wins were via submission.
Ante Delijja (3-0 in 2012): The Croatian heavyweight pushed his record to 6-0 picking up his biggest win to date over former UFC champ Ricco Rodriguez via decision and also submitted Kristof Nataska and Zeli Zalani in 2012.
Stav Economou (3-0 in 2012): The Crazy Bear had a solid 2012 submitting Deividas Banaitis and Tomasz Czerwinski while winning a decision over Ricco Rodriguez.
Piotr Hallman (3-0 in 2012): The Polish lightweight WFC champ pushed his win streak to 7 by earning 2 TKO's over Vaso Bakocevic and Jarkko Latomaki while submitting Kevin Donnelly.
