Boxers / Jackal Maruyama / Boxerbook rating

Jackal Maruyama: Boxerbook rating

Jackal Maruyama has a Boxerbook rating of 1448 ± 324 from 4 counted bouts, as of Oct 13, 2026. Not in a division list: inactive since Sep 1982 (no bout for 12 months).

Rating1448 ± 324
Placenot listed
Counted bouts4
Unknown opponents0 of 4
Schedule, career1825
Schedule, 36 monthsno bouts
Form, last 50.5 of 3.5
Data confidence0%
Statusinactive since Sep 1982

Rating over time

high 1455 · low 1358May 1981Sep 1982

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 4 bouts.

D
Kōji Kobayashi
Sep 3, 1982 · UD 10/10 · weight ×1.05 · opponent 1687
+90
→ 1448
L
Shoji Oguma
Jun 24, 1982 · PTS 10/10 · weight ×1.05 · opponent 1766
−39
→ 1358
L
Kim Cheol-ho
For WBC super-flyweight title
Nov 18, 1981 · TKO 9/15 · weight ×1.65 · opponent 1884
−58
→ 1397
L
Gustavo Ballas
May 9, 1981 · TKO 11/12 · weight ×1.10 · opponent 1961
−45
→ 1455

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 · Jackal Maruyama: record and titles