| Aiko vs Jin | 4–11 | 26.67% |
| Aiko vs Nina | 4–10 | 28.57% |
| Aiko vs King | 3–9 | 25.00% |
| Aiko vs Yoshimitsu | 2–7 | 22.22% |
| Aiko vs Hwoarang | 1–8 | 11.11% |
| Aiko vs Steve | 3–5 | 37.50% |
| Aiko vs Azucena | 6–2 | 75.00% |
| Aiko vs Reina | 6–1 | 85.71% |
| Aiko vs Law | 0–5 | 0.00% |
| Aiko vs Bryan | 1–4 | 20.00% |
| Aiko vs Jack-8 | 1–4 | 20.00% |
| Aiko vs Leroy | 3–2 | 60.00% |
| Aiko vs Heihachi | 1–4 | 20.00% |
| Aiko vs Lili | 0–4 | 0.00% |
| Aiko vs Kuma | 2–2 | 50.00% |
| Aiko vs Dragunov | 1–2 | 33.33% |
| Aiko vs Lars | 1–2 | 33.33% |
| Aiko vs Xiaoyu | 0–2 | 0.00% |
| Aiko vs Kazuya | 0–2 | 0.00% |
| Aiko vs Asuka | 0–2 | 0.00% |
| Aiko vs Victor | 0–2 | 0.00% |
| Aiko vs Lidia | 2–0 | 100.00% |
| Aiko vs Devil Jin | 0–2 | 0.00% |
| Aiko vs Feng | 0–2 | 0.00% |
| Aiko vs Panda | 0–2 | 0.00% |
| Aiko vs Eddy | 0–2 | 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.