| Heyy vs Law | 24–2 | 92.31% |
| Heyy vs King | 17–4 | 80.95% |
| Heyy vs Jin | 11–4 | 73.33% |
| Heyy vs Bryan | 12–2 | 85.71% |
| Heyy vs Kazuya | 11–1 | 91.67% |
| Heyy vs Lidia | 10–2 | 83.33% |
| Heyy vs Eddy | 9–2 | 81.82% |
| Heyy vs Heihachi | 10–1 | 90.91% |
| Heyy vs Asuka | 10–0 | 100.00% |
| Heyy vs Devil Jin | 5–5 | 50.00% |
| Heyy vs Feng | 6–4 | 60.00% |
| Heyy vs Dragunov | 5–5 | 50.00% |
| Heyy vs Reina | 7–3 | 70.00% |
| Heyy vs Hwoarang | 7–2 | 77.78% |
| Heyy vs Nina | 7–2 | 77.78% |
| Heyy vs Lili | 4–4 | 50.00% |
| Heyy vs Clive | 6–2 | 75.00% |
| Heyy vs Paul | 5–2 | 71.43% |
| Heyy vs Yoshimitsu | 5–0 | 100.00% |
| Heyy vs Steve | 4–0–1 | 100.00% |
| Heyy vs Xiaoyu | 4–0 | 100.00% |
| Heyy vs Lars | 3–0 | 100.00% |
| Heyy vs Lee | 2–1 | 66.67% |
| Heyy vs Azucena | 3–0 | 100.00% |
| Heyy vs Jack-8 | 2–0 | 100.00% |
| Heyy vs Alisa | 2–0 | 100.00% |
| Heyy vs Shaheen | 0–2 | 0.00% |
| Heyy vs Jun | 1–1 | 50.00% |
| Heyy vs Leo | 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.