| Yamaguchi vs Kazuya | 17–1 | 94.44% |
| Yamaguchi vs King | 15–2 | 88.24% |
| Yamaguchi vs Law | 11–3 | 78.57% |
| Yamaguchi vs Reina | 13–1 | 92.86% |
| Yamaguchi vs Dragunov | 10–1 | 90.91% |
| Yamaguchi vs Yoshimitsu | 7–1 | 87.50% |
| Yamaguchi vs Xiaoyu | 6–2 | 75.00% |
| Yamaguchi vs Bryan | 3–4 | 42.86% |
| Yamaguchi vs Lili | 4–3 | 57.14% |
| Yamaguchi vs Hwoarang | 6–0 | 100.00% |
| Yamaguchi vs Jin | 6–0 | 100.00% |
| Yamaguchi vs Asuka | 5–1 | 83.33% |
| Yamaguchi vs Lars | 6–0 | 100.00% |
| Yamaguchi vs Raven | 6–0 | 100.00% |
| Yamaguchi vs Alisa | 3–2 | 60.00% |
| Yamaguchi vs Lee | 4–1 | 80.00% |
| Yamaguchi vs Leroy | 4–1 | 80.00% |
| Yamaguchi vs Steve | 4–0 | 100.00% |
| Yamaguchi vs Leo | 4–0 | 100.00% |
| Yamaguchi vs Jun | 4–0 | 100.00% |
| Yamaguchi vs Victor | 4–0 | 100.00% |
| Yamaguchi vs Eddy | 1–2 | 33.33% |
| Yamaguchi vs Jack-8 | 2–0 | 100.00% |
| Yamaguchi vs Devil Jin | 2–0 | 100.00% |
| Yamaguchi vs Shaheen | 2–0 | 100.00% |
| Yamaguchi vs Azucena | 2–0 | 100.00% |
| Yamaguchi vs Paul | 1–0 | 100.00% |
| Yamaguchi vs Nina | 1–0 | 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.