| Zatoichi vs Law | 13–3 | 81.25% |
| Zatoichi vs Reina | 15–1 | 93.75% |
| Zatoichi vs Jin | 12–2 | 85.71% |
| Zatoichi vs King | 12–1 | 92.31% |
| Zatoichi vs Bryan | 10–2 | 83.33% |
| Zatoichi vs Kazuya | 7–4 | 63.64% |
| Zatoichi vs Steve | 7–4 | 63.64% |
| Zatoichi vs Heihachi | 7–3 | 70.00% |
| Zatoichi vs Nina | 6–3 | 66.67% |
| Zatoichi vs Eddy | 7–2 | 77.78% |
| Zatoichi vs Lili | 5–3 | 62.50% |
| Zatoichi vs Paul | 4–3 | 57.14% |
| Zatoichi vs Xiaoyu | 6–1 | 85.71% |
| Zatoichi vs Alisa | 4–3 | 57.14% |
| Zatoichi vs Jun | 5–2 | 71.43% |
| Zatoichi vs Clive | 5–2 | 71.43% |
| Zatoichi vs Yoshimitsu | 2–4 | 33.33% |
| Zatoichi vs Hwoarang | 4–2 | 66.67% |
| Zatoichi vs Asuka | 3–3 | 50.00% |
| Zatoichi vs Dragunov | 5–1 | 83.33% |
| Zatoichi vs Lars | 5–1 | 83.33% |
| Zatoichi vs Lee | 4–2 | 66.67% |
| Zatoichi vs Devil Jin | 2–2 | 50.00% |
| Zatoichi vs Feng | 3–1 | 75.00% |
| Zatoichi vs Kuma | 2–2 | 50.00% |
| Zatoichi vs Victor | 3–1 | 75.00% |
| Zatoichi vs Leo | 2–1 | 66.67% |
| Zatoichi vs Leroy | 3–0 | 100.00% |
| Zatoichi vs Azucena | 2–1 | 66.67% |
| Zatoichi vs Jack-8 | 1–0 | 100.00% |
| Zatoichi 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.