| Yaichi vs Dragunov | 7–6 | 53.85% |
| Yaichi vs King | 2–8 | 20.00% |
| Yaichi vs Hwoarang | 3–6 | 33.33% |
| Yaichi vs Jin | 8–1 | 88.89% |
| Yaichi vs Reina | 3–6 | 33.33% |
| Yaichi vs Kazuya | 2–6 | 25.00% |
| Yaichi vs Law | 1–6 | 14.29% |
| Yaichi vs Asuka | 4–3 | 57.14% |
| Yaichi vs Bryan | 2–4 | 33.33% |
| Yaichi vs Eddy | 0–6 | 0.00% |
| Yaichi vs Yoshimitsu | 2–3 | 40.00% |
| Yaichi vs Xiaoyu | 4–1 | 80.00% |
| Yaichi vs Steve | 2–3 | 40.00% |
| Yaichi vs Jack-8 | 3–2 | 60.00% |
| Yaichi vs Jun | 0–5 | 0.00% |
| Yaichi vs Victor | 3–2 | 60.00% |
| Yaichi vs Claudio | 0–4 | 0.00% |
| Yaichi vs Nina | 0–4 | 0.00% |
| Yaichi vs Lili | 2–1 | 66.67% |
| Yaichi vs Lee | 2–1 | 66.67% |
| Yaichi vs Kuma | 0–3 | 0.00% |
| Yaichi vs Paul | 2–0 | 100.00% |
| Yaichi vs Devil Jin | 0–2 | 0.00% |
| Yaichi vs Leo | 2–0 | 100.00% |
| Yaichi vs Panda | 0–2 | 0.00% |
| Yaichi vs Azucena | 1–1 | 50.00% |
| Yaichi vs Lidia | 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.