| Hefft vs Jin | 16–5 | 76.19% |
| Hefft vs King | 15–4 | 78.95% |
| Hefft vs Eddy | 12–4 | 75.00% |
| Hefft vs Hwoarang | 12–2 | 85.71% |
| Hefft vs Law | 12–1 | 92.31% |
| Hefft vs Azucena | 10–1 | 90.91% |
| Hefft vs Paul | 5–5 | 50.00% |
| Hefft vs Yoshimitsu | 6–4 | 60.00% |
| Hefft vs Kazuya | 7–3 | 70.00% |
| Hefft vs Kuma | 7–2 | 77.78% |
| Hefft vs Bryan | 8–0 | 100.00% |
| Hefft vs Steve | 5–3 | 62.50% |
| Hefft vs Lars | 6–2 | 75.00% |
| Hefft vs Jun | 5–3 | 62.50% |
| Hefft vs Asuka | 5–2 | 71.43% |
| Hefft vs Lili | 5–2 | 71.43% |
| Hefft vs Victor | 5–2 | 71.43% |
| Hefft vs Nina | 4–2 | 66.67% |
| Hefft vs Raven | 6–0 | 100.00% |
| Hefft vs Jack-8 | 3–2 | 60.00% |
| Hefft vs Leroy | 2–2 | 50.00% |
| Hefft vs Reina | 4–0 | 100.00% |
| Hefft vs Xiaoyu | 2–1 | 66.67% |
| Hefft vs Devil Jin | 1–2 | 33.33% |
| Hefft vs Feng | 3–0 | 100.00% |
| Hefft vs Leo | 1–2 | 33.33% |
| Hefft vs Alisa | 0–2 | 0.00% |
| Hefft vs Claudio | 2–0 | 100.00% |
| Hefft vs Lee | 2–0 | 100.00% |
| Hefft vs Heihachi | 2–0 | 100.00% |
| Hefft vs Dragunov | 0–1 | 0.00% |
| Hefft vs Shaheen | 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.