| Demifiend_real vs Reina | 26–19 | 57.78% |
| Demifiend_real vs Jin | 12–22 | 35.29% |
| Demifiend_real vs King | 17–15 | 53.12% |
| Demifiend_real vs Kazuya | 15–17 | 46.88% |
| Demifiend_real vs Lili | 13–16 | 44.83% |
| Demifiend_real vs Hwoarang | 14–11 | 56.00% |
| Demifiend_real vs Bryan | 11–12 | 47.83% |
| Demifiend_real vs Steve | 10–12 | 45.45% |
| Demifiend_real vs Lars | 9–9 | 50.00% |
| Demifiend_real vs Feng | 8–9 | 47.06% |
| Demifiend_real vs Eddy | 4–13 | 23.53% |
| Demifiend_real vs Yoshimitsu | 7–9 | 43.75% |
| Demifiend_real vs Jun | 5–11 | 31.25% |
| Demifiend_real vs Leroy | 6–8 | 42.86% |
| Demifiend_real vs Paul | 7–5 | 58.33% |
| Demifiend_real vs Victor | 6–6 | 50.00% |
| Demifiend_real vs Raven | 8–4 | 66.67% |
| Demifiend_real vs Law | 5–6 | 45.45% |
| Demifiend_real vs Asuka | 2–9 | 18.18% |
| Demifiend_real vs Dragunov | 9–2 | 81.82% |
| Demifiend_real vs Leo | 6–5 | 54.55% |
| Demifiend_real vs Nina | 5–6 | 45.45% |
| Demifiend_real vs Lee | 3–8 | 27.27% |
| Demifiend_real vs Azucena | 3–7 | 30.00% |
| Demifiend_real vs Alisa | 3–6 | 33.33% |
| Demifiend_real vs Kuma | 4–4 | 50.00% |
| Demifiend_real vs Xiaoyu | 3–4 | 42.86% |
| Demifiend_real vs Jack-8 | 1–5 | 16.67% |
| Demifiend_real vs Devil Jin | 4–2 | 66.67% |
| Demifiend_real vs Shaheen | 1–4 | 20.00% |
| Demifiend_real vs Claudio | 0–2 | 0.00% |
| Demifiend_real vs Zafina | 1–1 | 50.00% |
| Demifiend_real vs Panda | 1–0 | 100.00% |
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.