| Heikija vs Reina | 53–53 | 50.00% |
| Heikija vs King | 42–60 | 41.18% |
| Heikija vs Lee | 40–28 | 58.82% |
| Heikija vs Hwoarang | 26–40 | 39.39% |
| Heikija vs Steve | 31–34 | 47.69% |
| Heikija vs Jin | 39–25 | 60.94% |
| Heikija vs Dragunov | 34–29 | 53.97% |
| Heikija vs Paul | 33–29 | 53.23% |
| Heikija vs Bryan | 33–29 | 53.23% |
| Heikija vs Yoshimitsu | 42–19 | 68.85% |
| Heikija vs Kazuya | 32–26 | 55.17% |
| Heikija vs Lili | 35–17 | 67.31% |
| Heikija vs Lars | 29–22 | 56.86% |
| Heikija vs Azucena | 22–27 | 44.90% |
| Heikija vs Jun | 23–21 | 52.27% |
| Heikija vs Law | 21–22 | 48.84% |
| Heikija vs Nina | 20–22 | 47.62% |
| Heikija vs Jack-8 | 12–28 | 30.00% |
| Heikija vs Raven | 24–16 | 60.00% |
| Heikija vs Xiaoyu | 22–16 | 57.89% |
| Heikija vs Asuka | 12–23 | 34.29% |
| Heikija vs Devil Jin | 20–15 | 57.14% |
| Heikija vs Feng | 11–24 | 31.43% |
| Heikija vs Leo | 16–19 | 45.71% |
| Heikija vs Victor | 10–24 | 29.41% |
| Heikija vs Zafina | 17–16 | 51.52% |
| Heikija vs Eddy | 6–23 | 20.69% |
| Heikija vs Alisa | 11–17 | 39.29% |
| Heikija vs Claudio | 17–10 | 62.96% |
| Heikija vs Kuma | 9–12 | 42.86% |
| Heikija vs Shaheen | 10–9 | 52.63% |
| Heikija vs Leroy | 8–10 | 44.44% |
| Heikija vs Heihachi | 2–5 | 28.57% |
| Heikija vs Lidia | 2–4 | 33.33% |
| Heikija vs Clive | 2–1 | 66.67% |
| Heikija vs Panda | 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.