Middleweight · Poland

Karol Welter

21-1-0 9 KO · 2018–2026

Karol Welter is a middleweight boxer from Poland, born Sep 29, 1995. Record 21-1-0 with 9 knockouts over 2018–2026. Karol Welter last fought Evander Castillo on Mar 6, 2026 and won by KO in round 3 of 10.

BornSep 29, 1995
Country🇵🇱 Poland
StanceOrthodox
Reach188 cm
DebutJan 20, 2018
Career2018–2026
Rounds boxed131
KO share43%
Born inLegnica, Poland
TitlesWBA Baltic and Republic of Poland International middleweight titles 2026
Boxerbook rating#23 in Middleweight · 1840 ± 159Why here ›
Confirmed bouts4 of 22 · 2 official

Record and next fight

Record
21-1-0, 9 KOs · 2018–2026
Next fight
No next fight confirmed

Last result

W
Evander Castillo
Retained WBA Baltic and Republic of Poland International middleweight titles
KO 3/10 · Hotel Terminal, Wroclaw, 🇵🇱
2026-03-06 ›
official ★

The record

22 bouts, 2018–2026, newest first. Records under each bout are both boxers going in.

Bouts by source: English Wikipedia · 22, WBA Fights Master Scores · 2, Wikipedia (pl) · 1

W
Evander Castillo
Retained WBA Baltic and Republic of Poland International middleweight titles
KO 3/10 · Hotel Terminal, Wroclaw, 🇵🇱
Welter 20-1-0 · Castillo —
2026-03-06 ›
official ★
W
Misto Abdulaev
Won vacant WBA Baltic and Republic of Poland International middleweight titles
TKO 4/10 · KGHM Arena Ślęza Wrocław, Wroclaw, 🇵🇱
Welter 19-1-0 · Abdulaev —
2025-11-29 ›
official ★
W
Maksim Hardzeika 🇧🇾
TKO 9/10 · Hala Widowiskowo-Sportowa, Ziębice, 🇵🇱
Welter 18-1-0 · Hardzeika 13-1-0
2025-09-27 ›
✓✓ two sources
W
Alcorac Caballero
KO 5/10 · Hala Widowiskowo-Sportowa, ul. Lotnicza 52, 🇵🇱
Welter 17-1-0 · Caballero —
2025-03-01 ›
✓ one source
W
Ernesto España
RTD 3/10 · Hala Widowiskowo-Sportowa, Ziębice, 🇵🇱
Welter 16-1-0 · España —
2024-12-14 ›
✓ one source
W
Andrew Robinson
UD 10/10 · Hala Widowiskowo-Sportowa, ul. Lotnicza 52, 🇵🇱
Welter 15-1-0 · Robinson —
2024-03-22 ›
✓ one source
W
Vasyl Hrebinnyk
TKO 4/6 · Hala Widowiskowo-Sportowa, ul. Lotnicza 52, 🇵🇱
Welter 14-1-0 · Hrebinnyk —
2023-10-27 ›
✓ one source
W
Kristaps Bulmeistars
UD 10/10 · Hotel Terminal, Wrocław, 🇵🇱
Welter 13-1-0 · Bulmeistars —
2023-07-08 ›
✓ one source
W
Stanisław Gibadlo
Won vacant Republic of Poland middleweight title
UD 10/10 · PGE Turów Arena, Zgorzelec, 🇵🇱
Welter 12-1-0 · Gibadlo —
2023-04-15 ›
✓ one source
W
Yaniel Evander Rivera
UD 8/8 · Regionalne Centrum Turystyki i Sportu, Karlino, 🇵🇱
Welter 11-1-0 · Rivera —
2022-10-01 ›
✓ one source
W
Emmanuel Feuzeu 🇨🇲
UD 6/6 · Hala Zespołu Szkół, Środa Wielkopolska, 🇵🇱
Welter 10-1-0 · Feuzeu —
2022-05-20 ›
✓ one source
W
Patryk Szymański 🇵🇱
TKO 7/8 · Obiek Rekreacyjno Sportowy Rondo, Konin, 🇵🇱
Welter 9-1-0 · Szymański 21-4-0
2022-03-11 ›
✓✓ two sources
W
Damian Mielewczyk 🇵🇱
UD 8/8 · Hala MCKiS, Jaworzno, 🇵🇱
Welter 8-1-0 · Mielewczyk 8-1-0
2021-10-29 ›
✓ one source
L
Przemysław Gorgoń
For Republic of Poland super middleweight title
SD 10/10 · Lodowisko BOSiR, Białystok, 🇵🇱
Welter 8-0-0 · Gorgoń —
2021-09-03 ›
✓ one source
W
Bartosz Głowacki
MD 6/6 · Kompleks Rekreacyjno, Opole, 🇵🇱
Welter 7-0-0 · Głowacki —
2021-06-26 ›
✓ one source
W
Damian Stanisławski
UD 6/6 · Klub Explosion, Warsaw, 🇵🇱
Welter 6-0-0 · Stanisławski —
2021-04-09 ›
✓ one source
W
Jakub Bahnik
TKO 4/6 · Stegu Arena, Opole, 🇵🇱
Welter 5-0-0 · Bahnik —
2020-11-27 ›
✓ one source
W
Łukasz Rafalko
SD 4/4 · Lodowisko BOSiR, Białystok, 🇵🇱
Welter 4-0-0 · Rafalko —
2020-09-05 ›
✓ one source
W
Patryk Nowak
TKO 2/4 · Hala Widowiskowo-Sportowa Złotowianka, Złotów, 🇵🇱
Welter 3-0-0 · Nowak —
2020-07-24 ›
✓ one source
W
Issam Faiz
UD 4/4 · PGE Turów Arena, Zgorzelec, 🇵🇱
Welter 2-0-0 · Faiz —
2019-09-28 ›
✓ one source
Show all 22 bouts
W
Omar Jatta
UD 4/4 · PGE Turów Arena, Zgorzelec, 🇵🇱
Welter 1-0-0 · Jatta —
2018-12-01 ›
✓ one source
W
David Schwierz
UD 4/4 · Empore, Buchholz in der Nordheide, 🇩🇪
Welter 0-0-0 · Schwierz —
2018-01-20 ›
✓ one source

Ratings now

14
WBA · Middleweight
as of 2026-09-30

World titles

No world title reigns recorded.

Facts

What is Karol Welter's record?
Karol Welter's professional record is 21-1-0 with 9 knockouts.
When is Karol Welter's next fight?
No next fight is confirmed as of 17 Oct 2026.
Who did Karol Welter fight last?
Karol Welter last fought Evander Castillo on Mar 6, 2026 and won by KO in round 3 of 10.

Sources

Boxerbook ID 3598 · permanent link boxerbook.com/id/3598. Wikidata (CC0), English Wikipedia (CC BY-SA), publisher rankings. Last fetched: 2026-10-11. Spot a mistake? Every bout page has a link to report it.

Wikipedia ↗Wikidata ↗