| Heiko vs King | 16–30 | 34.78% |
| Heiko vs Jin | 9–25 | 26.47% |
| Heiko vs Steve | 8–20 | 28.57% |
| Heiko vs Reina | 7–21 | 25.00% |
| Heiko vs Kazuya | 10–17 | 37.04% |
| Heiko vs Lili | 6–18 | 25.00% |
| Heiko vs Yoshimitsu | 8–15 | 34.78% |
| Heiko vs Jun | 7–15 | 31.82% |
| Heiko vs Clive | 4–14 | 22.22% |
| Heiko vs Lars | 4–12 | 25.00% |
| Heiko vs Victor | 8–7 | 53.33% |
| Heiko vs Bryan | 2–12 | 14.29% |
| Heiko vs Leo | 5–7 | 41.67% |
| Heiko vs Heihachi | 3–9 | 25.00% |
| Heiko vs Hwoarang | 3–8 | 27.27% |
| Heiko vs Dragunov | 1–10 | 9.09% |
| Heiko vs Anna | 3–8 | 27.27% |
| Heiko vs Armor King | 3–8 | 27.27% |
| Heiko vs Devil Jin | 3–7 | 30.00% |
| Heiko vs Eddy | 3–7 | 30.00% |
| Heiko vs Law | 4–5 | 44.44% |
| Heiko vs Lee | 1–8 | 11.11% |
| Heiko vs Miary Zo | 3–6 | 33.33% |
| Heiko vs Jack-8 | 2–6 | 25.00% |
| Heiko vs Asuka | 3–5 | 37.50% |
| Heiko vs Leroy | 4–4 | 50.00% |
| Heiko vs Paul | 1–6 | 14.29% |
| Heiko vs Feng | 3–4 | 42.86% |
| Heiko vs Lidia | 1–6 | 14.29% |
| Heiko vs Alisa | 1–4 | 20.00% |
| Heiko vs Nina | 2–3 | 40.00% |
| Heiko vs Kuma | 3–2 | 60.00% |
| Heiko vs Xiaoyu | 1–2 | 33.33% |
| Heiko vs Claudio | 2–1 | 66.67% |
| Heiko vs Zafina | 1–2 | 33.33% |
| Heiko vs Azucena | 0–2 | 0.00% |
| Heiko vs Raven | 0–2 | 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.