| Headdoc vs King | 91–80 | 53.22% |
| Headdoc vs Kazuya | 69–83 | 45.39% |
| Headdoc vs Reina | 52–81 | 39.10% |
| Headdoc vs Dragunov | 63–66 | 48.84% |
| Headdoc vs Jin | 50–57 | 46.73% |
| Headdoc vs Bryan | 51–55 | 48.11% |
| Headdoc vs Steve | 45–58 | 43.69% |
| Headdoc vs Hwoarang | 38–62 | 38.00% |
| Headdoc vs Law | 41–55 | 42.71% |
| Headdoc vs Heihachi | 32–61 | 34.41% |
| Headdoc vs Paul | 38–45 | 45.78% |
| Headdoc vs Lars | 39–33 | 54.17% |
| Headdoc vs Victor | 29–40 | 42.03% |
| Headdoc vs Yoshimitsu | 21–40 | 34.43% |
| Headdoc vs Azucena | 25–35 | 41.67% |
| Headdoc vs Asuka | 22–36 | 37.93% |
| Headdoc vs Lili | 25–32 | 43.86% |
| Headdoc vs Nina | 22–32 | 40.74% |
| Headdoc vs Eddy | 22–32 | 40.74% |
| Headdoc vs Jun | 19–34 | 35.85% |
| Headdoc vs Lidia | 22–31 | 41.51% |
| Headdoc vs Lee | 17–33 | 34.00% |
| Headdoc vs Alisa | 20–25 | 44.44% |
| Headdoc vs Clive | 22–23 | 48.89% |
| Headdoc vs Xiaoyu | 14–30 | 31.82% |
| Headdoc vs Raven | 22–19 | 53.66% |
| Headdoc vs Leo | 19–21 | 47.50% |
| Headdoc vs Jack-8 | 17–18 | 48.57% |
| Headdoc vs Feng | 18–14 | 56.25% |
| Headdoc vs Devil Jin | 13–18 | 41.94% |
| Headdoc vs Leroy | 15–16 | 48.39% |
| Headdoc vs Fahkumram | 11–16 | 40.74% |
| Headdoc vs Claudio | 9–17 | 34.62% |
| Headdoc vs Zafina | 10–11 | 47.62% |
| Headdoc vs Kuma | 8–10 | 44.44% |
| Headdoc vs Miary Zo | 5–8 | 38.46% |
| Headdoc vs Armor King | 4–8 | 33.33% |
| Headdoc vs Shaheen | 2–5 | 28.57% |
| Headdoc vs Panda | 3–4 | 42.86% |
| Headdoc vs Anna | 3–4 | 42.86% |
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.