| Decean vs Jin | 19–16 | 54.29% |
| Decean vs Kazuya | 19–16 | 54.29% |
| Decean vs King | 11–19 | 36.67% |
| Decean vs Dragunov | 15–12 | 55.56% |
| Decean vs Heihachi | 11–14 | 44.00% |
| Decean vs Yoshimitsu | 15–8 | 65.22% |
| Decean vs Hwoarang | 11–9 | 55.00% |
| Decean vs Reina | 13–6 | 68.42% |
| Decean vs Victor | 10–9 | 52.63% |
| Decean vs Devil Jin | 13–4 | 76.47% |
| Decean vs Lili | 9–5 | 64.29% |
| Decean vs Law | 7–5 | 58.33% |
| Decean vs Bryan | 11–1 | 91.67% |
| Decean vs Jun | 6–5 | 54.55% |
| Decean vs Asuka | 7–2 | 77.78% |
| Decean vs Armor King | 6–3 | 66.67% |
| Decean vs Lars | 4–4 | 50.00% |
| Decean vs Zafina | 3–5 | 37.50% |
| Decean vs Xiaoyu | 4–3 | 57.14% |
| Decean vs Claudio | 3–4 | 42.86% |
| Decean vs Raven | 5–2 | 71.43% |
| Decean vs Fahkumram | 5–2 | 71.43% |
| Decean vs Steve | 4–2 | 66.67% |
| Decean vs Jack-8 | 3–3 | 50.00% |
| Decean vs Feng | 3–3 | 50.00% |
| Decean vs Leo | 4–2 | 66.67% |
| Decean vs Shaheen | 4–1 | 80.00% |
| Decean vs Eddy | 2–3 | 40.00% |
| Decean vs Lidia | 3–2 | 60.00% |
| Decean vs Paul | 1–3 | 25.00% |
| Decean vs Nina | 3–1 | 75.00% |
| Decean vs Clive | 2–2 | 50.00% |
| Decean vs Alisa | 3–0 | 100.00% |
| Decean vs Kuma | 2–0 | 100.00% |
| Decean vs Azucena | 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.