| Heihachi vs Law | 2–7 | 22.22% |
| Heihachi vs Jin | 5–4 | 55.56% |
| Heihachi vs Xiaoyu | 5–2 | 71.43% |
| Heihachi vs Bryan | 4–3 | 57.14% |
| Heihachi vs Reina | 4–3 | 57.14% |
| Heihachi vs Victor | 3–3 | 50.00% |
| Heihachi vs Kazuya | 4–1 | 80.00% |
| Heihachi vs Steve | 1–4 | 20.00% |
| Heihachi vs Lars | 3–2 | 60.00% |
| Heihachi vs Nina | 3–2 | 60.00% |
| Heihachi vs Jun | 2–3 | 40.00% |
| Heihachi vs King | 2–2 | 50.00% |
| Heihachi vs Lili | 0–4 | 0.00% |
| Heihachi vs Clive | 0–4 | 0.00% |
| Heihachi vs Feng | 0–2 | 0.00% |
| Heihachi vs Dragunov | 0–2 | 0.00% |
| Heihachi vs Leo | 0–2 | 0.00% |
| Heihachi vs Claudio | 0–2 | 0.00% |
| Heihachi vs Lidia | 2–0 | 100.00% |
| Heihachi vs Heihachi | 2–0 | 100.00% |
| Heihachi vs Paul | 1–0 | 100.00% |
| Heihachi vs Hwoarang | 1–0 | 100.00% |
| Heihachi vs Asuka | 0–1 | 0.00% |
| Heihachi vs Devil Jin | 0–1 | 0.00% |
| Heihachi vs Zafina | 0–1 | 0.00% |
| Heihachi vs Azucena | 1–0 | 100.00% |
| Heihachi vs Raven | 1–0 | 100.00% |
| Heihachi vs Eddy | 0–1 | 0.00% |
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.