| Demonologist vs Hwoarang | 9–12 | 42.86% |
| Demonologist vs Dragunov | 6–14 | 30.00% |
| Demonologist vs King | 7–11 | 38.89% |
| Demonologist vs Reina | 6–10 | 37.50% |
| Demonologist vs Jin | 5–8 | 38.46% |
| Demonologist vs Steve | 8–4 | 66.67% |
| Demonologist vs Paul | 3–8 | 27.27% |
| Demonologist vs Yoshimitsu | 1–7 | 12.50% |
| Demonologist vs Asuka | 2–6 | 25.00% |
| Demonologist vs Devil Jin | 3–5 | 37.50% |
| Demonologist vs Lars | 3–5 | 37.50% |
| Demonologist vs Azucena | 7–1 | 87.50% |
| Demonologist vs Law | 4–3 | 57.14% |
| Demonologist vs Lili | 3–3 | 50.00% |
| Demonologist vs Anna | 4–2 | 66.67% |
| Demonologist vs Lee | 0–5 | 0.00% |
| Demonologist vs Jun | 2–3 | 40.00% |
| Demonologist vs Victor | 2–3 | 40.00% |
| Demonologist vs Eddy | 2–3 | 40.00% |
| Demonologist vs Bryan | 1–3 | 25.00% |
| Demonologist vs Claudio | 0–4 | 0.00% |
| Demonologist vs Xiaoyu | 2–1 | 66.67% |
| Demonologist vs Feng | 0–3 | 0.00% |
| Demonologist vs Zafina | 2–1 | 66.67% |
| Demonologist vs Clive | 0–3 | 0.00% |
| Demonologist vs Jack-8 | 1–1 | 50.00% |
| Demonologist vs Leo | 0–2 | 0.00% |
| Demonologist vs Alisa | 0–2 | 0.00% |
| Demonologist vs Shaheen | 0–2 | 0.00% |
| Demonologist vs Heihachi | 0–2 | 0.00% |
| Demonologist vs Kazuya | 0–1 | 0.00% |
| Demonologist vs Nina | 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.