| Hiei vs Eddy | 15–45 | 25.00% |
| Hiei vs Jin | 27–31 | 46.55% |
| Hiei vs King | 27–29 | 48.21% |
| Hiei vs Reina | 19–23 | 45.24% |
| Hiei vs Steve | 12–28 | 30.00% |
| Hiei vs Devil Jin | 18–16 | 52.94% |
| Hiei vs Kazuya | 17–15 | 53.12% |
| Hiei vs Lili | 17–13 | 56.67% |
| Hiei vs Azucena | 17–12 | 58.62% |
| Hiei vs Dragunov | 14–14 | 50.00% |
| Hiei vs Yoshimitsu | 5–20 | 20.00% |
| Hiei vs Lars | 11–14 | 44.00% |
| Hiei vs Hwoarang | 13–11 | 54.17% |
| Hiei vs Bryan | 9–15 | 37.50% |
| Hiei vs Asuka | 9–15 | 37.50% |
| Hiei vs Law | 10–13 | 43.48% |
| Hiei vs Lee | 10–10 | 50.00% |
| Hiei vs Nina | 7–11 | 38.89% |
| Hiei vs Xiaoyu | 6–10 | 37.50% |
| Hiei vs Jun | 4–12 | 25.00% |
| Hiei vs Raven | 5–11 | 31.25% |
| Hiei vs Paul | 5–10 | 33.33% |
| Hiei vs Leo | 8–7 | 53.33% |
| Hiei vs Alisa | 6–8 | 42.86% |
| Hiei vs Feng | 5–8 | 38.46% |
| Hiei vs Kuma | 10–3 | 76.92% |
| Hiei vs Leroy | 8–5 | 61.54% |
| Hiei vs Claudio | 5–7 | 41.67% |
| Hiei vs Victor | 4–8 | 33.33% |
| Hiei vs Shaheen | 5–3 | 62.50% |
| Hiei vs Jack-8 | 4–3 | 57.14% |
| Hiei vs Panda | 4–2 | 66.67% |
| Hiei vs Zafina | 0–6 | 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.