Guillermo Ariel Lettieri (El Tano) boxer
- bouts
- 21
- won
- 17
- lost
- 3
- draw
- 1
- Status
- active
- Division
- welter
- Debut
- 2014-10-18
- Height
- -
- Reach
- -
- Age
- 44
- Born
- 1975-10-02
- Death
- -
- Nationality
- Argentina
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2019-04-20 | Lee Reeves | WWW | The Danforth Music Hall, Toronto | LOST Technical knockout |
| 2018-09-08 | Mohammed Abedeen | WWWWWW | Paramount Fine Foods Centre, Mississauga | LOST Technical knockout |
| 2017-01-21 | Martin Eduardo Avila | debut | Cabaña Boxing Club, Monte Grande | WIN Technical knockout |
| 2016-11-11 | Gustavo Alfredo Navarro | LLLL | Navarro | WIN Unanimous decision |
| 2016-05-22 | Carlos Alberto Gomez | LLL | San Justo | WIN Technical knockout |
| 2016-03-26 | Ramiro Andres Gonzalez | LLLLLL | Mision Argentina de Boxeo, Jose Leon Suarez | WIN KO |
| 2016-02-19 | Gonzalo Gaston Casco | WWWLLL | Centro Preventivo Local de las Adicciones (CePLA), Navarro | WIN Corner retirement |
| 2016-01-30 | Alan Adrian Nunez | WWWL | San Justo | WIN Unanimous decision |
| 2015-12-11 | Franco Lautaro Sanchez | WLLLLW | Club Villa Concepcion, Villa Concepcion | WIN KO |
| 2015-11-20 | Ricardo Meza | LLLLLL | Club Habana, Villa Martelli | WIN Technical knockout |
| 2015-10-23 | Gaston Medrano | debut | Sociedad de Fomento 25 de Mayo, Virreyes | WIN KO |
| 2015-09-26 | Ramiro Andres Gonzalez | LLLLL | Gimnasio Equipo Simal, San Justo | WIN KO |
| 2015-08-22 | Ernesto Jorge Borjas | LLLWLL | Salón de Fiestas Parque, Barrio Parque Jardín | WIN Unanimous decision |
| 2015-07-11 | Diego David Buran | LDL | Club Leandro N. Alem, General Rodriguez | WIN Split-decision |
| 2015-05-08 | Jose Luis Miramont | LL | Club del Sud, Navarro | WIN KO |
| 2015-04-19 | Armando Magallanes | debut | Junta Vecinal AUNAR, Paso del Rey | WIN Technical knockout |
| 2015-03-13 | Maximiliano Claudio Brizuela | L | Club del Sud, Navarro | LOST KO |
| 2015-02-14 | Maximiliano Claudio Brizuela | debut | Club Show Ball, Jose C. Paz | WIN Unanimous decision |
| 2015-01-24 | Ricardo Abel Barboza | LDL | Junta Vecinal AUNAR, Paso del Rey | WIN KO |
| 2014-12-05 | Diego David Buran | L | Club del Sud, Navarro | DRAW |
| 2014-10-18 | Diego David Buran | debut | Club Leandro N. Alem, General Rodriguez | WIN KO |
