| Aizen vs King | 11–14 | 44.00% |
| Aizen vs Reina | 13–6 | 68.42% |
| Aizen vs Kazuya | 9–6 | 60.00% |
| Aizen vs Eddy | 6–8 | 42.86% |
| Aizen vs Hwoarang | 9–4 | 69.23% |
| Aizen vs Jin | 6–4 | 60.00% |
| Aizen vs Leroy | 5–5 | 50.00% |
| Aizen vs Azucena | 6–4 | 60.00% |
| Aizen vs Victor | 8–2 | 80.00% |
| Aizen vs Leo | 5–4 | 55.56% |
| Aizen vs Steve | 8–0 | 100.00% |
| Aizen vs Law | 4–2 | 66.67% |
| Aizen vs Asuka | 3–3 | 50.00% |
| Aizen vs Alisa | 3–2 | 60.00% |
| Aizen vs Claudio | 1–4 | 20.00% |
| Aizen vs Nina | 4–1 | 80.00% |
| Aizen vs Lee | 2–3 | 40.00% |
| Aizen vs Kuma | 3–0 | 100.00% |
| Aizen vs Heihachi | 2–1 | 66.67% |
| Aizen vs Clive | 1–2 | 33.33% |
| Aizen vs Paul | 0–2 | 0.00% |
| Aizen vs Yoshimitsu | 2–0 | 100.00% |
| Aizen vs Bryan | 0–2 | 0.00% |
| Aizen vs Jack-8 | 2–0 | 100.00% |
| Aizen vs Lili | 2–0 | 100.00% |
| Aizen vs Zafina | 2–0 | 100.00% |
| Aizen vs Xiaoyu | 1–0 | 100.00% |
| Aizen vs Dragunov | 1–0 | 100.00% |
| Aizen vs Fahkumram | 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.