SS
Lightweight · Brazil
Sidney Siqueira 26-13-1 17 KO · 2005–2017
Sidney Siqueira is a lightweight boxer from Brazil, born Jul 22, 1977. Record 26-13-1 with 17 knockouts over 2005–2017. Sidney Siqueira last fought Mike Alvarado on Aug 19, 2017 and lost by KO in round 4 of 10.
Born Jul 22, 1977
Country 🇧🇷 Brazil
Stance Orthodox
Reach 193 cm
Debut May 1, 2005
Career 2005–2017
Rounds boxed 192
KO share 65%
Born in Trindade, Pernambuco, Brazil
Titles Brazilian lightweight title 2010
Boxerbook rating 1411 ± 169 · inactive since Aug 2017Why here › Confirmed bouts 7 of 40
Record and next fight Record
26-13-1, 17 KOs · 2005–2017
Next fight
No next fight confirmed
Last result L
KO 4/10 · Pinnacle Bank Arena, Lincoln, Nebraska, 🇺🇸
The record 40 bouts, 2005–2017, newest first. Records under each bout are both boxers going in.
Bouts by source: English Wikipedia · 40, Wikipedia (ru) · 2, Wikipedia (ja) · 1
L
KO 4/10 · Pinnacle Bank Arena, Lincoln, Nebraska, 🇺🇸
Siqueira 26-12-1 · Alvarado 37-4-0
L
UD 8/8 · CenturyLink Center, Omaha, Nebraska, 🇺🇸
Siqueira 26-11-1 · Reed 20-0-0
L
UD 10/10 · Convention Center, Tucson, 🇺🇸
Siqueira 26-10-1 · Benavidez 23-0-0
L
Vitor Jones
For Brazilian lightweight title UD 10/10 · Arena Santos, Santos, 🇧🇷
Siqueira 26-9-1 · Jones —
L
Vitor Jones
UD 6/6 · Arena Santos, Santos, 🇧🇷
Siqueira 26-8-1 · Jones —
W
Jailton de Jesus Souza
KO 4/6 · Sede A.G.B., Guarulhos, 🇧🇷
Siqueira 25-8-1 · Souza —
W
Filipe dos Anjos Matos
TKO 3/6 · Alphaville, São Paulo, 🇧🇷
Siqueira 24-8-1 · Matos —
W
Genival Roque de Azevedo Filho
TKO 2/8 · São Carlos, São Paulo, 🇧🇷
Siqueira 23-8-1 · Filho —
L
For WBC Latino lightweight title TKO 3/10 · Club Ciclista Juninense, Junín, 🇦🇷
Siqueira 23-7-1 · Lopez 27-0-1
W
Rafael Mactavisch
KO 1/8 · São Paulo, 🇧🇷
Siqueira 22-7-1 · Mactavisch —
W
Marilson Inacio Pereira
TKO 3/8 · Cordeirópolis, São Paulo, 🇧🇷
Siqueira 21-7-1 · Pereira —
W
Genival Roque de Azevedo Filho
TKO 4/8 · Itapira, São Paulo, 🇧🇷
Siqueira 20-7-1 · Filho —
W
Rodolfo Franz
TKO 3/6 · ID Academia do Boxe, São Paulo, 🇧🇷
Siqueira 19-7-1 · Franz —
L
TKO 6/8 · Wynn Las Vegas, Paradise, 🇺🇸
Siqueira 19-6-1 · Crawford 18-0-0
W
Genival Roque de Azevedo Filho
UD 4/4 · Ginasio Municipal do Polvilho, Cajamar, 🇧🇷
Siqueira 18-6-1 · Filho —
W
Jack Welson
DQ 3/6 · Ginásio Municipal, Valparaíso, 🇧🇷
Siqueira 17-6-1 · Welson —
W
Ubiraci Borges dos Santos
UD 6/6 · ID Academia do Boxe, São Paulo, 🇧🇷
Siqueira 16-6-1 · Santos —
L
UD 10/10 · Windhoek Country Club Resort, Windhoek, 🇳🇦
Siqueira 16-5-1 · Moses 27-1-0
W
Domingos de Jesus
TKO 3/6 · Ginásio Mane Garrincha, São Paulo, 🇧🇷
Siqueira 15-5-1 · Jesus —
W
Lucival Barradas
Won Brazilian lightweight title TKO 3/10 · Cachoeira do Arari, Pará, 🇧🇷
Siqueira 14-5-1 · Barradas —
Show all 40 bouts W
Carmelito de Jesus
UD 8/8 · Ginásio Baby Barione, São Paulo, 🇧🇷
Siqueira 13-5-1 · Jesus —
W
Reginaldo Silva Tavares
KO 1/6 · São Paulo, 🇧🇷
Siqueira 12-5-1 · Tavares —
L
Emmanuel Lartey
UD 10/10 · Ohene Djan Sports Stadium, Accra, 🇬🇭
Siqueira 12-4-1 · Lartey —
L
TKO 8/8 · Stadium Khadjimukan, Shymkent, 🇰🇿
Siqueira 12-3-1 · Corley 33-11-1
L
For WBA Inter-Continental light welterweight title KO 5/12 · Autodromo, Adria, 🇮🇹
Siqueira 12-2-1 · Zamora —
W
Jose Claudio da Silva
TKO 2/6 · Academia Unica, São Paulo, 🇧🇷
Siqueira 11-2-1 · Silva —
W
Guilherme dos Santos
TKO 3/4 · Montes Claros, Minas Gerais, 🇧🇷
Siqueira 10-2-1 · Santos —
W
Dione Rodrigues Gomes
UD 6/6 · Ginásio Municipal Blota Junior, Ribeirão Bonito, 🇧🇷
Siqueira 9-2-1 · Gomes —
W
Antonio Maria do Nascimento
Retained Brazilian lightweight title TKO 2/10 · Rio de Janeiro, 🇧🇷
Siqueira 8-2-1 · Nascimento —
L
Alexandro de Matos
TKO 2/8 · Prefeitura Municipal, Itupeva, 🇧🇷
Siqueira 8-1-1 · Matos —
D
Sergio Rafael Liendo
TD 4/10 · Ginásio Municipal, Cajamar, 🇧🇷
Siqueira 8-1-0 · Liendo —
W
Andre Marcos Nascimento
Won vacant Brazilian lightweight title SD 10/10 · Ginásio Lourenção, Bragança Paulista, 🇧🇷
Siqueira 7-1-0 · Nascimento —
W
Antonio Santos Rosario
TKO 2/4 · Ginásio de Esportes, Pilar do Sul, 🇧🇷
Siqueira 6-1-0 · Rosario —
W
Andre Marcos Nascimento
UD 10/10 · Ilha Comprida, São Paulo, 🇧🇷
Siqueira 5-1-0 · Nascimento —
W
Antonio Carlos Bispo
TKO 6/8 · Indaiatuba, São Paulo, 🇧🇷
Siqueira 4-1-0 · Bispo —
W
Renato Pedro
UD 4/4 · Cajamar, São Paulo, 🇧🇷
Siqueira 3-1-0 · Pedro —
W
Andre Luiz da Cunha Pereira
TKO 1/4 · Ginásio Municipal, Monte Mor, 🇧🇷
Siqueira 2-1-0 · Pereira —
W
Aldimar Silva
UD 4/4 · Gimnasio Municipal, Embu das Artes, 🇧🇷
Siqueira 1-1-0 · Silva —
W
Francisco Almeida
KO 4/6 · Ferraz de Vasconcelos, São Paulo, 🇧🇷
Siqueira 0-1-0 · Almeida —
L
Andre Marcos Nascimento
UD 4/4 · Carapicuíba, São Paulo, 🇧🇷
Siqueira 0-0-0 · Nascimento —
Ratings now Not in any current ranking.
World titles No world title reigns recorded.
Facts
What is Sidney Siqueira's record? Sidney Siqueira's professional record is 26-13-1 with 17 knockouts.
When is Sidney Siqueira's next fight? No next fight is confirmed as of 12 Oct 2026.
Who did Sidney Siqueira fight last? Sidney Siqueira last fought Mike Alvarado on Aug 19, 2017 and lost by KO in round 4 of 10. Sources Boxerbook ID 93 · permanent link boxerbook.com/id/93 . Wikidata (CC0), English Wikipedia (CC BY-SA). Last fetched: 2026-10-11. Spot a mistake? Every bout page has a link to report it.