| Old Chou vs Clive | 15–17 | 46.88% |
| Old Chou vs Kazuya | 8–23 | 25.81% |
| Old Chou vs Azucena | 6–19 | 24.00% |
| Old Chou vs Lili | 9–13 | 40.91% |
| Old Chou vs Jin | 10–11 | 47.62% |
| Old Chou vs Paul | 3–17 | 15.00% |
| Old Chou vs Reina | 7–13 | 35.00% |
| Old Chou vs Asuka | 6–13 | 31.58% |
| Old Chou vs Steve | 7–11 | 38.89% |
| Old Chou vs King | 4–13 | 23.53% |
| Old Chou vs Dragunov | 7–9 | 43.75% |
| Old Chou vs Nina | 4–11 | 26.67% |
| Old Chou vs Anna | 2–9 | 18.18% |
| Old Chou vs Hwoarang | 3–7 | 30.00% |
| Old Chou vs Xiaoyu | 4–6 | 40.00% |
| Old Chou vs Bryan | 3–7 | 30.00% |
| Old Chou vs Devil Jin | 2–8 | 20.00% |
| Old Chou vs Claudio | 3–7 | 30.00% |
| Old Chou vs Law | 3–6 | 33.33% |
| Old Chou vs Jun | 3–6 | 33.33% |
| Old Chou vs Eddy | 2–7 | 22.22% |
| Old Chou vs Jack-8 | 5–3 | 62.50% |
| Old Chou vs Feng | 2–6 | 25.00% |
| Old Chou vs Victor | 3–4 | 42.86% |
| Old Chou vs Yoshimitsu | 3–3 | 50.00% |
| Old Chou vs Heihachi | 2–4 | 33.33% |
| Old Chou vs Lidia | 2–3 | 40.00% |
| Old Chou vs Leo | 2–2 | 50.00% |
| Old Chou vs Panda | 1–3 | 25.00% |
| Old Chou vs Lars | 1–2 | 33.33% |
| Old Chou vs Alisa | 1–2 | 33.33% |
| Old Chou vs Kuma | 1–2 | 33.33% |
| Old Chou vs Zafina | 2–1 | 66.67% |
| Old Chou vs Shaheen | 0–2 | 0.00% |
| Old Chou vs Raven | 1–1 | 50.00% |
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.