| Ali9 vs Steve | 13–18 | 41.94% |
| Ali9 vs Hwoarang | 7–22 | 24.14% |
| Ali9 vs Jin | 7–21 | 25.00% |
| Ali9 vs Law | 8–17 | 32.00% |
| Ali9 vs Armor King | 9–12 | 42.86% |
| Ali9 vs Kazuya | 8–10 | 44.44% |
| Ali9 vs King | 5–12 | 29.41% |
| Ali9 vs Reina | 8–9 | 47.06% |
| Ali9 vs Jun | 2–11 | 15.38% |
| Ali9 vs Lars | 5–7 | 41.67% |
| Ali9 vs Lee | 4–8 | 33.33% |
| Ali9 vs Victor | 4–7 | 36.36% |
| Ali9 vs Fahkumram | 1–7–1 | 12.50% |
| Ali9 vs Bryan | 1–7 | 12.50% |
| Ali9 vs Dragunov | 2–6 | 25.00% |
| Ali9 vs Eddy | 5–3 | 62.50% |
| Ali9 vs Heihachi | 3–4 | 42.86% |
| Ali9 vs Feng | 1–5 | 16.67% |
| Ali9 vs Azucena | 2–4 | 33.33% |
| Ali9 vs Xiaoyu | 3–2 | 60.00% |
| Ali9 vs Devil Jin | 2–3 | 40.00% |
| Ali9 vs Yoshimitsu | 2–2 | 50.00% |
| Ali9 vs Lili | 2–2 | 50.00% |
| Ali9 vs Leo | 1–3 | 25.00% |
| Ali9 vs Nina | 3–1 | 75.00% |
| Ali9 vs Raven | 1–3 | 25.00% |
| Ali9 vs Clive | 1–3 | 25.00% |
| Ali9 vs Paul | 2–1 | 66.67% |
| Ali9 vs Lidia | 0–3 | 0.00% |
| Ali9 vs Alisa | 1–1 | 50.00% |
| Ali9 vs Claudio | 0–2 | 0.00% |
| Ali9 vs Kuma | 0–2 | 0.00% |
| Ali9 vs Anna | 1–1 | 50.00% |
| Ali9 vs Zafina | 0–1 | 0.00% |
| Ali9 vs Miary Zo | 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.