Boxers / Nao Ugawa / Boxerbook rating

Nao Ugawa: Boxerbook rating

Nao Ugawa is #4 in the Boxerbook women’s atomweight list with a rating of 1657 ± 192 from 7 counted bouts, as of Oct 13, 2026.

Rating1657 ± 192
Place#4 in Women’s Atomweight
Counted bouts7
Unknown opponents4 of 7
Schedule, career1314
Schedule, 36 months1275
Form, last 52.5 of 3.5
Data confidence29%
Statusactive · last bout Apr 7, 2026

Rating over time

high 1804 · low 1639Apr 2022Oct 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: 4 of 7 bouts.

L
Sumire Yamanaka
Vacant IBF world women's atomweight title
Apr 7, 2026 · SD 10/10 · weight ×1.57 · opponent 1799
−147
→ 1657
W
Rikaho Sou (no page: counted as 1100)
WBO Asia Pacific title, 1st defence
Jan 21, 2025 · UD 8/8 · weight ×1.50
+22
→ 1804
W
Riho Yoshida (no page: counted as 1100)
Vacant WBO Asia Pacific women's atomweight title
Jun 14, 2024 · SD 8/8 · weight ×1.50
+26
→ 1782
W
Reika Kawaguchi (no page: counted as 1100)
Oct 15, 2023 · UD 6/6 · weight ×0.90
+18
→ 1756
W
Sakura Kaminarinari (no page: counted as 1100)
Jun 20, 2023 · UD 4/4 · weight ×0.80
+18
→ 1739
W
Kanae Maehara
Sep 1, 2022 · UD 4/4 · weight ×0.80 · opponent 1500
+82
→ 1721
W
Mayumi Nakano
Apr 26, 2022 · MD 4/4 · weight ×0.80 · opponent 1500
+139
→ 1639

Publishers and Boxerbook

Consensus: average place 14.8 in Women’s Atomweight (a list without them counts as 16).

WBC
not in top 15
WBA
not in top 15
IBF
not in top 15
WBO as of 2026-09-01
#10
Ring
not in top 15
TBRB
not in top 15
Boxerbook
#4

How the Boxerbook rating works · Nao Ugawa: record and titles