| Aiko vs King | 25–26 | 49.02% |
| Aiko vs Steve | 25–14 | 64.10% |
| Aiko vs Reina | 21–15 | 58.33% |
| Aiko vs Kazuya | 10–22 | 31.25% |
| Aiko vs Hwoarang | 17–12 | 58.62% |
| Aiko vs Jin | 15–13 | 53.57% |
| Aiko vs Azucena | 17–9 | 65.38% |
| Aiko vs Law | 6–17 | 26.09% |
| Aiko vs Lili | 13–10 | 56.52% |
| Aiko vs Bryan | 7–12 | 36.84% |
| Aiko vs Paul | 7–10 | 41.18% |
| Aiko vs Yoshimitsu | 8–9 | 47.06% |
| Aiko vs Feng | 8–7 | 53.33% |
| Aiko vs Lars | 8–7 | 53.33% |
| Aiko vs Heihachi | 5–10 | 33.33% |
| Aiko vs Xiaoyu | 6–7 | 46.15% |
| Aiko vs Lidia | 5–8 | 38.46% |
| Aiko vs Jun | 3–9 | 25.00% |
| Aiko vs Raven | 5–6 | 45.45% |
| Aiko vs Asuka | 3–7 | 30.00% |
| Aiko vs Dragunov | 5–5 | 50.00% |
| Aiko vs Kuma | 4–6 | 40.00% |
| Aiko vs Victor | 7–3 | 70.00% |
| Aiko vs Leroy | 6–3 | 66.67% |
| Aiko vs Nina | 5–3 | 62.50% |
| Aiko vs Clive | 2–6 | 25.00% |
| Aiko vs Leo | 4–2 | 66.67% |
| Aiko vs Lee | 4–2 | 66.67% |
| Aiko vs Eddy | 3–2 | 60.00% |
| Aiko vs Alisa | 0–4 | 0.00% |
| Aiko vs Jack-8 | 1–2 | 33.33% |
| Aiko vs Devil Jin | 0–3 | 0.00% |
| Aiko vs Claudio | 3–0 | 100.00% |
| Aiko vs Zafina | 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.