| José Ailton vs King | 7–14 | 33.33% |
| José Ailton vs Kazuya | 10–8 | 55.56% |
| José Ailton vs Steve | 9–9 | 50.00% |
| José Ailton vs Law | 6–10 | 37.50% |
| José Ailton vs Lars | 4–11 | 26.67% |
| José Ailton vs Asuka | 5–9 | 35.71% |
| José Ailton vs Lee | 8–6 | 57.14% |
| José Ailton vs Reina | 5–9 | 35.71% |
| José Ailton vs Eddy | 5–9 | 35.71% |
| José Ailton vs Heihachi | 8–5 | 61.54% |
| José Ailton vs Paul | 5–6 | 45.45% |
| José Ailton vs Bryan | 7–4 | 63.64% |
| José Ailton vs Jin | 5–5 | 50.00% |
| José Ailton vs Victor | 2–5 | 28.57% |
| José Ailton vs Lidia | 2–5 | 28.57% |
| José Ailton vs Jack-8 | 2–4 | 33.33% |
| José Ailton vs Devil Jin | 4–2 | 66.67% |
| José Ailton vs Shaheen | 3–3 | 50.00% |
| José Ailton vs Azucena | 0–6 | 0.00% |
| José Ailton vs Dragunov | 4–1 | 80.00% |
| José Ailton vs Jun | 3–2 | 60.00% |
| José Ailton vs Feng | 2–2 | 50.00% |
| José Ailton vs Clive | 0–4 | 0.00% |
| José Ailton vs Panda | 2–1 | 66.67% |
| José Ailton vs Anna | 3–0 | 100.00% |
| José Ailton vs Lili | 2–0 | 100.00% |
| José Ailton vs Nina | 0–2 | 0.00% |
| José Ailton vs Kuma | 0–2 | 0.00% |
| José Ailton vs Yoshimitsu | 0–1 | 0.00% |
| José Ailton vs Hwoarang | 0–1 | 0.00% |
| José Ailton vs Xiaoyu | 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.