| Aiko vs King | 18–32 | 36.00% |
| Aiko vs Jin | 15–22 | 40.54% |
| Aiko vs Steve | 16–18 | 47.06% |
| Aiko vs Armor King | 16–18 | 47.06% |
| Aiko vs Reina | 16–16 | 50.00% |
| Aiko vs Law | 9–21 | 30.00% |
| Aiko vs Hwoarang | 9–18 | 33.33% |
| Aiko vs Kazuya | 11–12 | 47.83% |
| Aiko vs Bryan | 8–12 | 40.00% |
| Aiko vs Eddy | 6–11 | 35.29% |
| Aiko vs Asuka | 8–7 | 53.33% |
| Aiko vs Lars | 5–10 | 33.33% |
| Aiko vs Lee | 9–6 | 60.00% |
| Aiko vs Clive | 9–6 | 60.00% |
| Aiko vs Lili | 6–8 | 42.86% |
| Aiko vs Fahkumram | 9–5 | 64.29% |
| Aiko vs Nina | 6–6 | 50.00% |
| Aiko vs Azucena | 7–5 | 58.33% |
| Aiko vs Devil Jin | 4–6 | 40.00% |
| Aiko vs Yoshimitsu | 2–7 | 22.22% |
| Aiko vs Alisa | 3–6 | 33.33% |
| Aiko vs Jun | 4–5 | 44.44% |
| Aiko vs Victor | 5–4 | 55.56% |
| Aiko vs Xiaoyu | 4–4 | 50.00% |
| Aiko vs Dragunov | 5–3 | 62.50% |
| Aiko vs Lidia | 3–5 | 37.50% |
| Aiko vs Heihachi | 1–4 | 20.00% |
| Aiko vs Anna | 3–2 | 60.00% |
| Aiko vs Paul | 1–3 | 25.00% |
| Aiko vs Jack-8 | 2–2 | 50.00% |
| Aiko vs Claudio | 0–4 | 0.00% |
| Aiko vs Panda | 1–2 | 33.33% |
| Aiko vs Zafina | 3–0 | 100.00% |
| Aiko vs Raven | 2–1 | 66.67% |
| Aiko vs Feng | 0–2 | 0.00% |
| Aiko vs Leo | 0–2 | 0.00% |
| Aiko vs Leroy | 0–2 | 0.00% |
| Aiko vs Shaheen | 0–1 | 0.00% |
| Aiko vs Kuma | 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.