| Yoichi vs King | 2–4 | 33.33% |
| Yoichi vs Lars | 2–3 | 40.00% |
| Yoichi vs Leroy | 1–4 | 20.00% |
| Yoichi vs Clive | 2–3 | 40.00% |
| Yoichi vs Hwoarang | 1–3 | 25.00% |
| Yoichi vs Steve | 3–1 | 75.00% |
| Yoichi vs Xiaoyu | 1–2 | 33.33% |
| Yoichi vs Jin | 1–2 | 33.33% |
| Yoichi vs Nina | 1–2 | 33.33% |
| Yoichi vs Kuma | 3–0 | 100.00% |
| Yoichi vs Zafina | 1–2 | 33.33% |
| Yoichi vs Anna | 2–1 | 66.67% |
| Yoichi vs Paul | 2–0 | 100.00% |
| Yoichi vs Law | 2–0 | 100.00% |
| Yoichi vs Kazuya | 0–2 | 0.00% |
| Yoichi vs Lili | 0–2 | 0.00% |
| Yoichi vs Dragunov | 2–0 | 100.00% |
| Yoichi vs Reina | 0–2 | 0.00% |
| Yoichi vs Lidia | 0–2 | 0.00% |
| Yoichi vs Devil Jin | 1–0 | 100.00% |
| Yoichi vs Feng | 1–0 | 100.00% |
| Yoichi vs Alisa | 1–0 | 100.00% |
| Yoichi vs Azucena | 0–1 | 0.00% |
| Yoichi vs Heihachi | 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.