| HalloWeen vs Bryan | 32–20 | 61.54% |
| HalloWeen vs Kazuya | 15–21 | 41.67% |
| HalloWeen vs Steve | 22–11 | 66.67% |
| HalloWeen vs Law | 15–14 | 51.72% |
| HalloWeen vs King | 12–17 | 41.38% |
| HalloWeen vs Dragunov | 18–9 | 66.67% |
| HalloWeen vs Jin | 13–12 | 52.00% |
| HalloWeen vs Paul | 12–11 | 52.17% |
| HalloWeen vs Hwoarang | 14–8 | 63.64% |
| HalloWeen vs Lee | 11–10 | 52.38% |
| HalloWeen vs Heihachi | 11–10 | 52.38% |
| HalloWeen vs Anna | 11–10 | 52.38% |
| HalloWeen vs Victor | 11–7 | 61.11% |
| HalloWeen vs Jun | 7–10 | 41.18% |
| HalloWeen vs Nina | 7–5 | 58.33% |
| HalloWeen vs Asuka | 4–7 | 36.36% |
| HalloWeen vs Alisa | 7–4 | 63.64% |
| HalloWeen vs Feng | 3–7 | 30.00% |
| HalloWeen vs Lili | 5–5 | 50.00% |
| HalloWeen vs Yoshimitsu | 4–5 | 44.44% |
| HalloWeen vs Xiaoyu | 6–3 | 66.67% |
| HalloWeen vs Clive | 2–6 | 25.00% |
| HalloWeen vs Reina | 5–2 | 71.43% |
| HalloWeen vs Eddy | 4–3 | 57.14% |
| HalloWeen vs Claudio | 1–5 | 16.67% |
| HalloWeen vs Leroy | 3–3 | 50.00% |
| HalloWeen vs Lars | 3–2 | 60.00% |
| HalloWeen vs Kuma | 0–5 | 0.00% |
| HalloWeen vs Fahkumram | 3–2 | 60.00% |
| HalloWeen vs Devil Jin | 3–1 | 75.00% |
| HalloWeen vs Leo | 2–2 | 50.00% |
| HalloWeen vs Azucena | 1–3 | 25.00% |
| HalloWeen vs Shaheen | 3–0 | 100.00% |
| HalloWeen vs Lidia | 1–2 | 33.33% |
| HalloWeen vs Jack-8 | 0–2 | 0.00% |
| HalloWeen vs Raven | 0–1 | 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.