| Headahh vs King | 62–59 | 51.24% |
| Headahh vs Kazuya | 66–43 | 60.55% |
| Headahh vs Reina | 48–56 | 46.15% |
| Headahh vs Jin | 59–44 | 57.28% |
| Headahh vs Steve | 49–37 | 56.98% |
| Headahh vs Law | 50–31 | 61.73% |
| Headahh vs Hwoarang | 41–40 | 50.62% |
| Headahh vs Bryan | 32–46 | 41.03% |
| Headahh vs Paul | 35–40 | 46.67% |
| Headahh vs Eddy | 43–27 | 61.43% |
| Headahh vs Jun | 30–34 | 46.88% |
| Headahh vs Dragunov | 31–28 | 52.54% |
| Headahh vs Asuka | 29–28 | 50.88% |
| Headahh vs Lee | 32–21 | 60.38% |
| Headahh vs Yoshimitsu | 27–24 | 52.94% |
| Headahh vs Lili | 28–22 | 56.00% |
| Headahh vs Lars | 23–27 | 46.00% |
| Headahh vs Lidia | 27–23 | 54.00% |
| Headahh vs Azucena | 26–23 | 53.06% |
| Headahh vs Victor | 20–21–1 | 48.78% |
| Headahh vs Devil Jin | 22–18 | 55.00% |
| Headahh vs Xiaoyu | 17–21 | 44.74% |
| Headahh vs Jack-8 | 19–17 | 52.78% |
| Headahh vs Nina | 14–21 | 40.00% |
| Headahh vs Leo | 21–13 | 61.76% |
| Headahh vs Raven | 17–16 | 51.52% |
| Headahh vs Heihachi | 18–14 | 56.25% |
| Headahh vs Fahkumram | 19–13 | 59.38% |
| Headahh vs Alisa | 15–15 | 50.00% |
| Headahh vs Feng | 19–10 | 65.52% |
| Headahh vs Clive | 12–16 | 42.86% |
| Headahh vs Leroy | 13–12 | 52.00% |
| Headahh vs Claudio | 11–11 | 50.00% |
| Headahh vs Anna | 10–9 | 52.63% |
| Headahh vs Armor King | 6–11 | 35.29% |
| Headahh vs Kuma | 7–9 | 43.75% |
| Headahh vs Miary Zo | 1–12 | 7.69% |
| Headahh vs Shaheen | 6–6 | 50.00% |
| Headahh vs Zafina | 2–6 | 25.00% |
| Headahh vs Panda | 1–5 | 16.67% |
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.