| SonicTheHeihog vs Heihachi | 51–54 | 48.57% |
| SonicTheHeihog vs Kazuya | 37–45–1 | 45.12% |
| SonicTheHeihog vs Bryan | 24–21 | 53.33% |
| SonicTheHeihog vs Steve | 20–25 | 44.44% |
| SonicTheHeihog vs King | 22–21 | 51.16% |
| SonicTheHeihog vs Reina | 27–16 | 62.79% |
| SonicTheHeihog vs Jin | 14–16 | 46.67% |
| SonicTheHeihog vs Azucena | 14–16 | 46.67% |
| SonicTheHeihog vs Hwoarang | 15–13 | 53.57% |
| SonicTheHeihog vs Jun | 10–15 | 40.00% |
| SonicTheHeihog vs Asuka | 12–10 | 54.55% |
| SonicTheHeihog vs Yoshimitsu | 7–14 | 33.33% |
| SonicTheHeihog vs Lili | 10–10 | 50.00% |
| SonicTheHeihog vs Dragunov | 7–13 | 35.00% |
| SonicTheHeihog vs Law | 3–15 | 16.67% |
| SonicTheHeihog vs Lee | 7–11 | 38.89% |
| SonicTheHeihog vs Paul | 4–13 | 23.53% |
| SonicTheHeihog vs Victor | 8–8 | 50.00% |
| SonicTheHeihog vs Eddy | 7–8 | 46.67% |
| SonicTheHeihog vs Leo | 6–8 | 42.86% |
| SonicTheHeihog vs Feng | 8–5 | 61.54% |
| SonicTheHeihog vs Nina | 7–6 | 53.85% |
| SonicTheHeihog vs Xiaoyu | 7–5 | 58.33% |
| SonicTheHeihog vs Lars | 8–4 | 66.67% |
| SonicTheHeihog vs Claudio | 5–7 | 41.67% |
| SonicTheHeihog vs Leroy | 3–9 | 25.00% |
| SonicTheHeihog vs Alisa | 6–5 | 54.55% |
| SonicTheHeihog vs Jack-8 | 8–2 | 80.00% |
| SonicTheHeihog vs Raven | 2–8 | 20.00% |
| SonicTheHeihog vs Devil Jin | 2–5 | 28.57% |
| SonicTheHeihog vs Zafina | 4–2 | 66.67% |
| SonicTheHeihog vs Kuma | 0–4 | 0.00% |
| SonicTheHeihog vs Clive | 2–2 | 50.00% |
| SonicTheHeihog vs Shaheen | 2–0 | 100.00% |
| SonicTheHeihog vs Lidia | 0–2 | 0.00% |
| SonicTheHeihog vs Panda | 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.