He won the IBF junior flyweight title from Colombian Carlos Támara on May 29, 2010. Lazarte was the oldest reigning world boxing champion in the world, at 40 years old, until May 21, 2011. He lost his title by decision to former champion Ulises Solis on May 21, 2011. Lazarte also challenged for the world title twice at minimumweight (against Kermin Guardia and Daniel Reyes), twice more at light flyweight (against Édgar Sosa and John Riel Casimero) and twice at flyweight (against Pongsaklek Wonjongkam and Omar Narváez).
Lazarte's competitive boxing career effectively ended after he was given a rare lifetime ban by the International Boxing Federation following a February 10, 2012 match against Johnriel Casimero in which Lazarte, surrounded by supporters and fighting in his home country, intentionally leveled low blows, headbutts and illegal blows to the back of the head against Casimero, as well as biting him at least twice, threatened the referee's life after being warned for his conduct, then (after being ruled the loser) deliberately sparked a riot in the arena that caused numerous additional injuries to police, spectators and Casimero's team.[1]
On February 2012, during an IBF Light Flyweight title fight in Mar del Plata, Argentina, Lazarte was stopped in the tenth round by John Riel Casimero. After the fight Lazarte and his team sparked a riot in which Casimero and his team were attacked. They were later escorted by pólice and later Lazarte visited and apologized to Casimero
The Philippines has filed a diplomatic protest to the Argentine government after Argentine fans attacked Casimero in the ring after winning the title bout.[2][3]
Philippine Foreign Affairs spokesman Raul Hernandez said that his country's embassy filed a protest with Argentina's Ministry of Foreign Affairs and is awaiting an explanation.[2]
His role in the riot resulted in a rare lifetime ban being given to Lazarte by the IBF. He announced his retirement afterwards
| No.|Number | Result | Record | Opponent | Type | Round, time | Date | Location | Notes |
|---|
| 67 | {{no2}}Loss | (1)}} | {{flagicon|CHI}} Miguel Gonzalez | UD}} | 11 (11)}} | 2015-11-20}} | {{flagicon|CHI}} {{small|Gimnasio Club Mexico, Santiago de Chile}} | |
| 66 | {{yes2}}Win | (1)}} | {{flagicon|ARG}} Carlos Ariel Farias | SD}} | 10 (10)}} | 2015-03-07}} | {{flagicon|ARG}} {{small|Ce.De.M. N° 2, Caseros}} | |
| 65 | {{yes2}}Win | (1)}} | {{flagicon|ARG}} Elias David Coronel | UD}} | 10 (10)}} | 2014-11-29}} | {{flagicon|ARG}} {{small|C. A. Social y Deportivo Camioneros, Buenos Aires}} | |
| 64 | {{yes2}}Win | (1)}} | {{flagicon|ARG}} Roberto Carlos Marin | UD}} | 8 (8)}} | 2014-07-25}} | {{flagicon|ARG}} {{small|C. A. Social y Deportivo Camioneros, Buenos Aires}} | |
| 63 | {{no2}}Loss | (1)}} | {{flagicon|PHI}} Johnriel Casimero | TKO}} | 10 (12)}} | 2012-02-10}} | {{flagicon|ARG}} {{small|Club Once Unidos, Mar del Plata}} | {{small|For interim IBF light flyweight title.}} |
| 62 | {{yes2}}Win | (1)}} | {{flagicon|NIC}} Nerys Espinoza | UD}} | 12 (12)}} | 2011-09-02}} | {{flagicon|ARG}} {{small|Club Once Unidos, Mar del Plata}} | |
| 61 | {{no2}}Loss | (1)}} | {{flagicon|MEX}} Ulises Solís | SD}} | 12 (12)}} | 2011-04-30}} | {{flagicon|ARG}} {{small|Club Once Unidos, Mar del Plata}} | {{small|Loss IBF Light flyweight title.}} |
| 60 | {{draw}}Draw | (1)}} | {{flagicon|MEX}} Ulises Solís | MD}} | 12 (12)}} | 2010-12-18}} | {{flagicon|ARG}} {{small|Club Once Unidos, Mar del Plata}} | {{small|Retain IBF Light flyweight title.}} |
| 59 | {{yes2}}Win | (1)}} | {{flagicon|NIC}} Nerys Espinoza | UD}} | 12 (12)}} | 2010-09-04}} | {{flagicon|ARG}} {{small|Club Once Unidos, Mar del Plata}} | {{small|Retain IBF Light flyweight title.}} |
| 58 | {{yes2}}Win | (1)}} | {{flagicon|COL}} Carlos Tamara | SD}} | 12 (12)}} | 2010-05-29}} | {{flagicon|ARG}} {{small|Club Once Unidos, Mar del Plata}} | {{small|Won IBF Light Flyweight title.}} |
| 57 | {{yes2}}Win | (1)}} | {{flagicon|ARG}} Raul Eliseo Medina | UD}} | 10 (10)}} | 2010-01-23}} | {{flagicon|ARG}} {{small|Club Once Unidos, Mar del Plata}} | |
| 56 | {{yes2}}Win | (1)}} | {{flagicon|ARG}} Juan Carlos Cejas | UD}} | 6 (6)}} | 2009-12-17}} | {{flagicon|ARG}} {{small|Unión de Padres Los Toritos, Monte Grande}} | |
| 55 | {{yes2}}Win | (1)}} | {{flagicon|ARG}} Sebastian Eladio Ferreyra | UD}} | 6 (6)}} | 2009-08-07}} | {{flagicon|ARG}} {{small|Club Domingo Faustino Sarmiento, Dolores}} | |
| 54 | {{yes2}}Win | (1)}} | {{flagicon|ARG}} Pedro Cardenas | TKO}} | 2 (12)}} | 2009-06-13}} | {{flagicon|ARG}} {{small|Club Once Unidos, Mar del Plata}} | |
| 53 | {{yes2}}Win | (1)}} | {{flagicon|ARG}} Gustavo Adrian Rodriguez | UD}} | 12 (12)}} | 2009-02-14}} | {{flagicon|ARG}} {{small|Club Once Unidos, Mar del Plata}} | |
| 52 | {{yes2}}Win | (1)}} | {{flagicon|ARG}} Sebastian Eladio Ferreyra | UD}} | 6 (6)}} | 2008-12-12}} | {{flagicon|ARG}} {{small|Club El Riojano, Balcarce}} | |
| 51 | {{no2}}Loss | (1)}} | {{flagicon|COL}} Daniel Reyes | MD}} | 12 (12)}} | 2008-09-26}} | {{flagicon|ARG}} {{small|Ce.De.M. N° 2, Caseros}} | {{small|For interim WBO Minimumweight title}} |
| 50 | {{yes2}}Win | (1)}} | {{flagicon|ARG}} Gustavo Adrian Rodriguez | UD}} | 10 (10)}} | 2008-06-06}} | {{flagicon|ARG}} {{small|Club Atletico Quilmes, Mar del Plata}} | |
| 49 | {{yes2}}Win | (1)}} | {{flagicon|ARG}} Juan Carlos Cejas | UD}} | 6 (6)}} | 2008-04-26}} | {{flagicon|ARG}} {{small|Ce.De.M. N° 2, Caseros}} | |
| 48 | NC | (1)}} | {{flagicon|ARG}} Juan Carlos Cejas | ND}} | 6 (6)}} | 2008-02-23}} | {{flagicon|ARG}} {{small|Club Social y Deportivo Mar de Ajó, Mar de Ajo}} | {{small|Both fighters disqualified}} |
| 47 | {{yes2}}Win | 38-8-1 | {{flagicon|ARG}} Ricardo Ariel Toledo | UD}} | 6}} | 2007-11-17}} | {{flagicon|ARG}} {{small|Club Atletico Independiente, Avellaneda}} | |
| 46 | {{no2}}Loss | 37-8-1 | {{flagicon|MEX}} Édgar Sosa | DQ}} | 10 (12)}} | 2007-07-28}} | {{flagicon|MEX}} {{small|Sindicato de Taxistas, Cancun}} | {{small|For WBC World light-flyweight title}} |
| 45 | {{yes2}}Win | 37-7-1 | {{flagicon|ARG}} Ricardo Ariel Toledo | UD}} | 8}} | 2007-05-26}} | {{flagicon|ARG}} {{small|Polideportivo Roberto De Vicenzo, Berazategui}} | |
| 44 | {{yes2}}Win | 36-7-1 | {{flagicon|ARG}} Bernardo Ramón Albornoz | KO}} | 2 (8)}} | 2007-04-27}} | {{flagicon|ARG}} {{small|Club Deportivo Moron, Moron}} | |
| 43 | {{yes2}}Win | 35-7-1 | {{flagicon|ARG}} Carlos Pramacio Villagrán | DQ}} | 2 (10)}} | 2007-02-10}} | {{flagicon|ARG}} {{small|Club El Inca, San Francisco Solano}} | |
| 42 | {{yes2}}Win | 34-7-1 | {{flagicon|PER}} Alberto Rossel | UD}} | 10}} | 2007-01-13}} | {{flagicon|ARG}} {{small|Club Atletico Quilmes, Mar del Plata}} | |
| 41 | {{yes2}}Win | 33-7-1 | {{flagicon|ARG}} Mario Oscar Narváez | UD}} | 8}} | 2007-01-13}} | {{flagicon|ARG}} {{small|Club Atletico Independiente, Avellaneda}} | |
| 40 | {{yes2}}Win | 32-7-1 | {{flagicon|BRA}} Reginaldo Martins Carvalho | TKO}} | 3 (8)}} | 2006-09-30}} | {{flagicon|ARG}} {{small|Club Atletico Independiente, Avellaneda}} | |
| 39 | {{yes2}}Win | 31-7-1 | {{flagicon|ARG}} Ricardo Ariel Toledo | KO}} | 1 (6)}} | 2006-07-12}} | {{flagicon|ARG}} {{small|Club Atletico Independiente, Avellaneda}} | |
| 38 | {{yes2}}Win | 30-7-1 | {{flagicon|ARG}} Gustavo Adrián Rodríguez | UD}} | 12}} | 2006-03-18}} | {{flagicon|ARG}} {{small|Club Atletico Independiente, Avellaneda}} | {{small|Retained S. A. light-flyweight title}} |
| 37 | {{yes2}}Win | 29-7-1 | {{flagicon|ARG}} Pablo César Sepúlveda | KO}} | 2 (8)}} | 2006-01-27}} | {{flagicon|ARG}} {{small|Club Atletico Quilmes, Mar del Plata}} | |
| 36 | {{yes2}}Win | 28-7-1 | {{flagicon|PAR}} Sixto Vera Espínola | RTD}} | 3 (8)}} | 2005-12-16}} | {{flagicon|ARG}} {{small|Club Atletico Independiente, Avellaneda}} | |
| 35 | {{yes2}}Win | 27-7-1 | {{flagicon|ARG}} Raúl Eliseo Medina | UD}} | 12}} | 2005-07-17}} | {{flagicon|ARG}} {{small|Club Atletico Quilmes, Mar del Plata}} | {{small|Retained S. A. light-flyweight title}} |
| 34 | {{yes2}}Win | 26-7-1 | {{flagicon|ARG}} Marcos Ramón Obregón | KO}} | 5 (12)}} | 2005-01-29}} | {{flagicon|ARG}} {{small|Club Atletico Quilmes, Mar del Plata}} | |
| 33 | {{yes2}}Win | 25-7-1 | {{flagicon|ARG}} Ángel Aníbal Torres | UD}} | 6}} | 2004-11-19}} | {{flagicon|ARG}} {{small|Mar del Plata}} | |
| 32 | {{yes2}}Win | 24-7-1 | {{flagicon|ARG}} Germán Guillermo Amado | KO}} | 3 (6)}} | 2004-11-19}} | {{flagicon|ARG}} {{small|Mar del Plata}} | |
| 31 | {{yes2}}Win | 23-7-1 | {{flagicon|ARG}} Pablo César Sepúlveda | UD}} | 4}} | 2004-05-24}} | {{flagicon|ARG}} {{small|Coronel Vidal}} | |
| 30 | {{yes2}}Win | 22-7-1 | {{flagicon|ARG}} Adolfo Luis Sosa | KO}} | 6 (6)}} | 2004-02-28}} | {{flagicon|ARG}} {{small|Club Atletico Mar del Plata, Mar del Plata}} | |
| 29 | {{yes2}}Win | 21-7-1 | {{flagicon|ARG}} Carlos Pramacio Villagrán | TKO}} | 9 (10)}} | 2004-01-10}} | {{flagicon|ARG}} {{small|Club Atletico Mar del Plata, Mar del Plata}} | |
| 28 | {{no2}}Loss | 20-7-1 | {{flagicon|ITA}} Giuseppe Lagana | SD}} | 12}} | 2003-02-20}} | {{flagicon|ITA}} {{small|San Giuseppe Vesuviano}} | |
| 27 | {{no2}}Loss | 20-6-1 | {{flagicon|ARG}} Omar Narváez | DQ}} | 10 (12)}} | 2002-09-13}} | {{flagicon|ARG}} {{small|Gimnasio Municipal Nº 1, Trelew}} | {{small|For WBO World flyweight title}} |
| 26 | {{yes2}}Win | 20-5-1 | {{flagicon|ARG}} Luis Osvaldo Monges | UD}} | 8}} | 2004-01-10}} | {{flagicon|ARG}} {{small|Estadio F.A.B., Buenos Aires}} | |
| 25 | {{no2}}Loss | 19-5-1 | {{flagicon|THA}} Pongsaklek Wonjongkam | TKO}} | 2 (12)}} | 2001-12-06}} | {{flagicon|THA}} {{small|Jomtien Hotel, Pattaya}} | {{small|For WBC World flyweight title}} |
| 24 | {{Draw}}Draw | 19-4-1 | {{flagicon|ARG}} Marcos Antonio Obregón | PTS}} | 12}} | 2001-08-17}} | {{flagicon|ARG}} {{small|Mar del Plata}} | {{small|For vacant S. A. light-flyweight title}} |
| 23 | {{no2}}Loss | 19-4 | {{flagicon|ARG}} Marcos Antonio Obregón | SD}} | 10}} | 2001-06-30}} | {{flagicon|ARG}} {{small|Club Rivadavia, Necochea}} | |
| 22 | {{no2}}Loss | 19-3 | {{flagicon|ARG}} Horacio Fabián Chicagual | DQ}} | 6 (10)}} | 2001-04-14}} | {{flagicon|ARG}} {{small|Puerto Madryn}} | |
| 21 | {{yes2}}Win | 19-2 | {{flagicon|ARG}} Sandro Orlando Oviedo | UD}} | 8}} | 2000-03-11}} | {{flagicon|ARG}} {{small|Club Atletico Quilmes, Mar del Plata}} | |
| 20 | {{no2}}Loss | 18-2 | {{flagicon|COL}} Kermin Guardia | SD}} | 12}} | 1999-10-30}} | {{flagicon|ARG}} {{small|Estadio Polideportivo, Mar del Plata}} | {{small|For WBO World Minimumweight title}} |
| 19 | {{yes2}}Win | 18–1 | {{flagicon|ARG}} Carlos Mario Eluaiza | RTD}} | 3 (12)}} | 1999-09-25}} | {{flagicon|ARG}} {{small|Club Nolting, Ciudadela}} | |
| 18 | {{yes2}}Win | 17–1 | {{flagicon|BOL}} Luis Alberto Ortiz | TD}} | 10}} | 1999-03-12}} | {{flagicon|ARG}} {{small|Mar del Plata}} | |
| 17 | {{yes2}}Win | 16–1 | {{flagicon|ARG}} Alfredo Saturnino Rivero | TKO}} | 2}} | 1999-01-10}} | {{flagicon|ARG}} {{small|Club Atletico Quilmes, Mar del Plata}} | |
| 16 | {{yes2}}Win | 15–1 | {{flagicon|ARG}} Marcelo Antonio Davila | TKO}} | 5}} | 1998-11-20}} | {{flagicon|ARG}} {{small|Mar del Plata}} | |
| 15 | {{yes2}}Win | 14–1 | {{flagicon|ARG}} Roberto Enrique Vallejos | KO}} | 4}} | 1998-09-11}} | {{flagicon|ARG}} {{small|Mar del Plata}} | |
| 14 | {{yes2}}Win | 13–1 | {{flagicon|ARG}} Jose Luis Ferreira | PTS}} | 12}} | 1998-08-07}} | {{flagicon|ARG}} {{small|Dolores}} | |
| 13 | {{yes2}}Win | 12–1 | {{flagicon|ARG}} Carlos Mario Eluaiza | KO}} | 9}} | 1998-04-18}} | {{flagicon|ARG}} {{small|Estadio F.A.B., Buenos Aires}} | |
| 12 | {{yes2}}Win | 11–1 | {{flagicon|ARG}} Carlos Mario Eluaiza | PTS}} | 12}} | 1998-02-27}} | {{flagicon|ARG}} {{small|Mar del Plata}} | |
| 11 | {{yes2}}Win | 10–1 | {{flagicon|ARG}} Pantaleon Altamirano | RTD}} | 6}} | 1998-02-13}} | {{flagicon|ARG}} {{small|Club Atletico Quilmes, Mar del Plata}} |
| 10 | {{no2}}Loss | 9–1 | {{flagicon|ARG}} Marcelo Antonio Davila | DQ}} | 8}} | 1998-01-16}} | {{flagicon|ARG}} {{small|Club Atletico Quilmes, Mar del Plata}} | |
| 9 | {{yes2}}Win | 9–0 | {{flagicon|ARG}} Roberto Enrique Vallejos | PTS}} | 8}} | 1997-11-22}} | {{flagicon|ARG}} {{small|Estadio F.A.B., Buenos Aires}} | |
| 8 | {{yes2}}Win | 8–0 | {{flagicon|ARG}} Ruben Asencio Molina | PTS}} | 6}} | 1997-08-02}} | {{flagicon|ARG}} {{small|Estadio F.A.B., Buenos Aires}} | |
| 7 | {{yes2}}Win | 7–0 | {{flagicon|ARG}} Luis Walter Oliva | PTS}} | 6}} | 1997-04-05}} | {{flagicon|ARG}} {{small|Tandil}} | |
| 6 | {{yes2}}Win | 6–0 | {{flagicon|ARG}} Orlando Adolfo Kispe | PTS}} | 6}} | 1997-02-28}} | {{flagicon|ARG}} {{small|Mar del Plata}} | |
| 5 | {{yes2}}Win | 5–0 | {{flagicon|ARG}} Mario Crispin Romero | PTS}} | 4}} | 1997-02-14}} | {{flagicon|ARG}} {{small|Villa Carlos Paz}} | |
| 4 | {{yes2}}Win | 4–0 | {{flagicon|ARG}} Luis Oscar Noriega | PTS}} | 6}} | 1997-01-31}} | {{flagicon|ARG}} {{small|Mar del Plata}} | |
| 3 | {{yes2}}Win | 3–0 | {{flagicon|ARG}} Sergio Daniel Villarreal | PTS}} | 6}} | 1997-01-10}} | {{flagicon|ARG}} {{small|Mar del Plata}} | |
| 2 | {{yes2}}Win | 2–0 | {{flagicon|ARG}} Roberto Carlos Martinez | KO}} | 3}} | 1996-07-05}} | {{flagicon|ARG}} {{small|Mar del Plata}} | |
| 1 | {{yes2}}Win | 1–0 | {{flagicon|ARG}} Angel Antonio Barros | KO}} | 2}} | 1996-03-02}} | {{flagicon|ARG}} {{small|Mar del Plata}} | {{small|Professional debut}} |
1. ^{{cite web|title=IBF bans boxer Luis Lazarte for life|url=http://espn.go.com/boxing/story/_/id/7581851/boxer-luis-lazarte-banned-ibf-threat-sparking-ring-riot|date=November 1, 2014|accessdate=January 26, 2013|publisher=espn.com}}