| Demyx vs Kazuya | 28–22 | 56.00% |
| Demyx vs Hwoarang | 15–18 | 45.45% |
| Demyx vs Jin | 15–14 | 51.72% |
| Demyx vs Steve | 12–16 | 42.86% |
| Demyx vs Bryan | 12–13 | 48.00% |
| Demyx vs Law | 10–14 | 41.67% |
| Demyx vs Lee | 5–19 | 20.83% |
| Demyx vs Clive | 10–13 | 43.48% |
| Demyx vs Heihachi | 9–12 | 42.86% |
| Demyx vs King | 8–10 | 44.44% |
| Demyx vs Paul | 12–4 | 75.00% |
| Demyx vs Yoshimitsu | 7–9 | 43.75% |
| Demyx vs Nina | 5–11 | 31.25% |
| Demyx vs Victor | 8–8 | 50.00% |
| Demyx vs Azucena | 11–4 | 73.33% |
| Demyx vs Dragunov | 7–7 | 50.00% |
| Demyx vs Eddy | 7–7 | 50.00% |
| Demyx vs Feng | 6–7 | 46.15% |
| Demyx vs Jun | 8–5 | 61.54% |
| Demyx vs Xiaoyu | 6–5 | 54.55% |
| Demyx vs Asuka | 8–3 | 72.73% |
| Demyx vs Reina | 8–3 | 72.73% |
| Demyx vs Raven | 5–5 | 50.00% |
| Demyx vs Jack-8 | 5–4 | 55.56% |
| Demyx vs Lili | 7–2 | 77.78% |
| Demyx vs Lidia | 2–7 | 22.22% |
| Demyx vs Devil Jin | 3–4 | 42.86% |
| Demyx vs Claudio | 3–2 | 60.00% |
| Demyx vs Shaheen | 4–1 | 80.00% |
| Demyx vs Lars | 2–2 | 50.00% |
| Demyx vs Alisa | 3–1 | 75.00% |
| Demyx vs Leo | 2–0 | 100.00% |
| Demyx vs Leroy | 0–2 | 0.00% |
| Demyx vs Anna | 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.