| Aizen vs Kazuya | 159–140 | 53.18% |
| Aizen vs Bryan | 151–125 | 54.71% |
| Aizen vs King | 147–128 | 53.45% |
| Aizen vs Jin | 120–115 | 51.06% |
| Aizen vs Dragunov | 133–102 | 56.60% |
| Aizen vs Paul | 156–73 | 68.12% |
| Aizen vs Law | 83–83 | 50.00% |
| Aizen vs Hwoarang | 69–62 | 52.67% |
| Aizen vs Heihachi | 65–65 | 50.00% |
| Aizen vs Yoshimitsu | 68–59 | 53.54% |
| Aizen vs Devil Jin | 51–61 | 45.54% |
| Aizen vs Feng | 54–52 | 50.94% |
| Aizen vs Nina | 52–51 | 50.49% |
| Aizen vs Steve | 54–41 | 56.84% |
| Aizen vs Reina | 46–37 | 55.42% |
| Aizen vs Victor | 47–33 | 58.75% |
| Aizen vs Jun | 39–38 | 50.65% |
| Aizen vs Claudio | 29–41 | 41.43% |
| Aizen vs Azucena | 42–28 | 60.00% |
| Aizen vs Lars | 29–40 | 42.03% |
| Aizen vs Lili | 33–30 | 52.38% |
| Aizen vs Lee | 24–33 | 42.11% |
| Aizen vs Lidia | 19–34 | 35.85% |
| Aizen vs Alisa | 24–25 | 48.98% |
| Aizen vs Shaheen | 22–27 | 44.90% |
| Aizen vs Eddy | 17–30 | 36.17% |
| Aizen vs Clive | 25–22 | 53.19% |
| Aizen vs Asuka | 21–24 | 46.67% |
| Aizen vs Leo | 27–17 | 61.36% |
| Aizen vs Jack-8 | 21–19 | 52.50% |
| Aizen vs Anna | 12–17 | 41.38% |
| Aizen vs Leroy | 11–14 | 44.00% |
| Aizen vs Fahkumram | 9–14 | 39.13% |
| Aizen vs Xiaoyu | 12–10 | 54.55% |
| Aizen vs Zafina | 9–10 | 47.37% |
| Aizen vs Raven | 9–9 | 50.00% |
| Aizen vs Kuma | 7–9 | 43.75% |
| Aizen vs Miary Zo | 6–1 | 85.71% |
| Aizen vs Armor King | 3–0 | 100.00% |
| Aizen vs Panda | 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.