| Heihachichan vs King | 3–4 | 42.86% |
| Heihachichan vs Kazuya | 4–3 | 57.14% |
| Heihachichan vs Lars | 5–2 | 71.43% |
| Heihachichan vs Law | 5–1 | 83.33% |
| Heihachichan vs Steve | 6–0 | 100.00% |
| Heihachichan vs Asuka | 2–4 | 33.33% |
| Heihachichan vs Lee | 4–2 | 66.67% |
| Heihachichan vs Raven | 3–3 | 50.00% |
| Heihachichan vs Bryan | 4–1 | 80.00% |
| Heihachichan vs Alisa | 1–4 | 20.00% |
| Heihachichan vs Yoshimitsu | 4–0 | 100.00% |
| Heihachichan vs Lili | 2–2 | 50.00% |
| Heihachichan vs Azucena | 4–0 | 100.00% |
| Heihachichan vs Eddy | 3–1 | 75.00% |
| Heihachichan vs Jin | 1–2 | 33.33% |
| Heihachichan vs Shaheen | 2–1 | 66.67% |
| Heihachichan vs Nina | 3–0 | 100.00% |
| Heihachichan vs Leroy | 2–1 | 66.67% |
| Heihachichan vs Jun | 3–0 | 100.00% |
| Heihachichan vs Feng | 0–2 | 0.00% |
| Heihachichan vs Dragunov | 0–2 | 0.00% |
| Heihachichan vs Leo | 0–2 | 0.00% |
| Heihachichan vs Claudio | 1–1 | 50.00% |
| Heihachichan vs Zafina | 2–0 | 100.00% |
| Heihachichan vs Paul | 1–0 | 100.00% |
| Heihachichan vs Hwoarang | 1–0 | 100.00% |
| Heihachichan vs Jack-8 | 1–0 | 100.00% |
| Heihachichan vs Reina | 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.