| Heiko vs Armor King | 10–6 | 62.50% |
| Heiko vs Steve | 7–8 | 46.67% |
| Heiko vs Paul | 10–3 | 76.92% |
| Heiko vs Jin | 8–4 | 66.67% |
| Heiko vs Kazuya | 9–3 | 75.00% |
| Heiko vs Eddy | 5–6 | 45.45% |
| Heiko vs Devil Jin | 7–3 | 70.00% |
| Heiko vs Nina | 7–2 | 77.78% |
| Heiko vs Reina | 3–6 | 33.33% |
| Heiko vs Heihachi | 4–4 | 50.00% |
| Heiko vs King | 4–3 | 57.14% |
| Heiko vs Hwoarang | 6–1 | 85.71% |
| Heiko vs Bryan | 4–3 | 57.14% |
| Heiko vs Jack-8 | 2–4 | 33.33% |
| Heiko vs Lee | 5–1 | 83.33% |
| Heiko vs Xiaoyu | 4–1 | 80.00% |
| Heiko vs Feng | 3–2 | 60.00% |
| Heiko vs Raven | 4–1 | 80.00% |
| Heiko vs Miary Zo | 3–2 | 60.00% |
| Heiko vs Law | 3–1 | 75.00% |
| Heiko vs Lili | 3–1 | 75.00% |
| Heiko vs Jun | 4–0 | 100.00% |
| Heiko vs Azucena | 3–1 | 75.00% |
| Heiko vs Yoshimitsu | 2–1 | 66.67% |
| Heiko vs Dragunov | 1–2 | 33.33% |
| Heiko vs Lidia | 2–1 | 66.67% |
| Heiko vs Clive | 1–2 | 33.33% |
| Heiko vs Leo | 2–0 | 100.00% |
| Heiko vs Kuma | 1–1 | 50.00% |
| Heiko vs Anna | 2–0 | 100.00% |
| Heiko vs Victor | 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.