Boxers / Marcin Siwy / Boxerbook rating

Marcin Siwy: Boxerbook rating

Marcin Siwy has a Boxerbook rating of 1897 ± 190 from 5 counted bouts, as of Oct 20, 2026. Not in a division list: inactive since Jun 2025 (no bout for 12 months).

Rating1897 ± 190
Placenot listed
Counted bouts5
Unknown opponents0 of 5
Schedule, career1712
Schedule, 36 months2031
Form, last 52.5 of 3.5
Data confidence0%
Statusinactive since Jun 2025

Rating over time

high 1977 · low 1797Nov 2016Oct 2026

μ at the end of each month with a bout, and of every month while active. Red dot: latest.

Bouts behind the rating

Every counted bout, newest first: the change in μ it caused (green up, red down), its weight and the rating after it. Unknown opponents: 0 of 5 bouts.

L
Damian Knyba
Jun 21, 2025 · RTD 8/10 · weight ×1.05 · opponent 2031
−80
→ 1897
W
Rydell Booker
Mar 26, 2022 · UD 8/8 · weight ×1.00 · opponent 1841
+95
→ 1977
W
Marcelo Luiz Nascimento
Nov 21, 2021 · KO 1/8 · weight ×1.00 · opponent 1486
+38
→ 1883
W
Oleksiy Mazikin
May 25, 2019 · KO 4/6 · weight ×0.90 · opponent 1476
+47
→ 1844
W
Michael Sprott
Nov 5, 2016 · UD 6/6 · weight ×0.90 · opponent 1728
+297
→ 1797

Publishers and Boxerbook

Consensus: no publisher lists for the division (a list without them counts as 16).

WBC
not in top 15
WBA
not in top 15
IBF
not in top 15
WBO
not in top 15
Ring
not in top 15
TBRB
not in top 15
Boxerbook
not listed

How the Boxerbook rating works · Marcin Siwy: record and titles