| YAMAMOTO vs Jin | 11–10 | 52.38% |
| YAMAMOTO vs Paul | 6–8 | 42.86% |
| YAMAMOTO vs Kazuya | 4–8 | 33.33% |
| YAMAMOTO vs Bryan | 4–7 | 36.36% |
| YAMAMOTO vs Leo | 9–2 | 81.82% |
| YAMAMOTO vs King | 8–2 | 80.00% |
| YAMAMOTO vs Nina | 5–5 | 50.00% |
| YAMAMOTO vs Lee | 3–6 | 33.33% |
| YAMAMOTO vs Asuka | 4–4 | 50.00% |
| YAMAMOTO vs Azucena | 3–5 | 37.50% |
| YAMAMOTO vs Heihachi | 4–4 | 50.00% |
| YAMAMOTO vs Law | 5–2 | 71.43% |
| YAMAMOTO vs Reina | 4–3 | 57.14% |
| YAMAMOTO vs Clive | 3–4 | 42.86% |
| YAMAMOTO vs Jack-8 | 3–3 | 50.00% |
| YAMAMOTO vs Dragunov | 4–2 | 66.67% |
| YAMAMOTO vs Leroy | 1–5 | 16.67% |
| YAMAMOTO vs Victor | 2–3 | 40.00% |
| YAMAMOTO vs Steve | 3–1 | 75.00% |
| YAMAMOTO vs Alisa | 2–2 | 50.00% |
| YAMAMOTO vs Jun | 1–3 | 25.00% |
| YAMAMOTO vs Devil Jin | 2–1 | 66.67% |
| YAMAMOTO vs Eddy | 1–2 | 33.33% |
| YAMAMOTO vs Yoshimitsu | 2–0 | 100.00% |
| YAMAMOTO vs Xiaoyu | 0–2 | 0.00% |
| YAMAMOTO vs Feng | 0–2 | 0.00% |
| YAMAMOTO vs Lili | 2–0 | 100.00% |
| YAMAMOTO vs Lars | 0–2 | 0.00% |
| YAMAMOTO vs Kuma | 0–2 | 0.00% |
| YAMAMOTO vs Zafina | 0–2 | 0.00% |
| YAMAMOTO vs Lidia | 2–0 | 100.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.