| Aizen vs Heihachi | 11–0 | 100.00% |
| Aizen vs King | 9–1 | 90.00% |
| Aizen vs Hwoarang | 9–1 | 90.00% |
| Aizen vs Law | 6–2 | 75.00% |
| Aizen vs Lili | 5–3 | 62.50% |
| Aizen vs Jun | 7–1 | 87.50% |
| Aizen vs Jin | 1–6 | 14.29% |
| Aizen vs Nina | 6–1 | 85.71% |
| Aizen vs Reina | 6–0 | 100.00% |
| Aizen vs Lidia | 3–3 | 50.00% |
| Aizen vs Anna | 6–0 | 100.00% |
| Aizen vs Bryan | 5–0 | 100.00% |
| Aizen vs Victor | 3–2 | 60.00% |
| Aizen vs Kazuya | 4–0 | 100.00% |
| Aizen vs Devil Jin | 4–0 | 100.00% |
| Aizen vs Dragunov | 2–2 | 50.00% |
| Aizen vs Claudio | 3–1 | 75.00% |
| Aizen vs Clive | 4–0 | 100.00% |
| Aizen vs Armor King | 4–0 | 100.00% |
| Aizen vs Feng | 1–2 | 33.33% |
| Aizen vs Lee | 2–1 | 66.67% |
| Aizen vs Fahkumram | 1–2 | 33.33% |
| Aizen vs Paul | 2–0 | 100.00% |
| Aizen vs Yoshimitsu | 2–0 | 100.00% |
| Aizen vs Asuka | 2–0 | 100.00% |
| Aizen vs Lars | 0–2 | 0.00% |
| Aizen vs Kuma | 2–0 | 100.00% |
| Aizen vs Miary Zo | 0–2 | 0.00% |
| Aizen vs Steve | 1–0 | 100.00% |
| Aizen vs Alisa | 0–1 | 0.00% |
| Aizen vs Shaheen | 1–0 | 100.00% |
| Aizen vs Leroy | 1–0 | 100.00% |
| Aizen vs Eddy | 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.