| Heyfild vs Jin | 13–13 | 50.00% |
| Heyfild vs Kazuya | 14–6 | 70.00% |
| Heyfild vs Hwoarang | 8–11 | 42.11% |
| Heyfild vs Law | 10–8 | 55.56% |
| Heyfild vs Eddy | 8–10 | 44.44% |
| Heyfild vs Bryan | 9–3 | 75.00% |
| Heyfild vs Steve | 11–0 | 100.00% |
| Heyfild vs Paul | 3–7 | 30.00% |
| Heyfild vs King | 7–3 | 70.00% |
| Heyfild vs Yoshimitsu | 4–5 | 44.44% |
| Heyfild vs Lili | 3–5 | 37.50% |
| Heyfild vs Victor | 4–3 | 57.14% |
| Heyfild vs Xiaoyu | 3–3 | 50.00% |
| Heyfild vs Asuka | 3–3 | 50.00% |
| Heyfild vs Dragunov | 2–4 | 33.33% |
| Heyfild vs Devil Jin | 2–3 | 40.00% |
| Heyfild vs Lars | 0–5 | 0.00% |
| Heyfild vs Reina | 3–2 | 60.00% |
| Heyfild vs Lidia | 2–3 | 40.00% |
| Heyfild vs Kuma | 3–1 | 75.00% |
| Heyfild vs Raven | 2–2 | 50.00% |
| Heyfild vs Alisa | 1–2 | 33.33% |
| Heyfild vs Nina | 1–2 | 33.33% |
| Heyfild vs Lee | 2–1 | 66.67% |
| Heyfild vs Azucena | 2–1 | 66.67% |
| Heyfild vs Feng | 1–1 | 50.00% |
| Heyfild vs Jun | 1–1 | 50.00% |
| Heyfild vs Jack-8 | 0–1 | 0.00% |
| Heyfild vs Leo | 1–0 | 100.00% |
| Heyfild vs Zafina | 1–0 | 100.00% |
| Heyfild vs Leroy | 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.