| Brain vs Dragunov | 23–27 | 46.00% |
| Brain vs King | 19–21 | 47.50% |
| Brain vs Paul | 25–11 | 69.44% |
| Brain vs Reina | 20–16 | 55.56% |
| Brain vs Kazuya | 15–19 | 44.12% |
| Brain vs Lili | 15–17 | 46.88% |
| Brain vs Azucena | 16–13 | 55.17% |
| Brain vs Hwoarang | 13–13 | 50.00% |
| Brain vs Law | 11–14 | 44.00% |
| Brain vs Jin | 8–17 | 32.00% |
| Brain vs Steve | 12–11 | 52.17% |
| Brain vs Eddy | 10–13 | 43.48% |
| Brain vs Feng | 12–10 | 54.55% |
| Brain vs Yoshimitsu | 7–13 | 35.00% |
| Brain vs Asuka | 11–9 | 55.00% |
| Brain vs Nina | 9–11 | 45.00% |
| Brain vs Lars | 8–11 | 42.11% |
| Brain vs Victor | 13–5 | 72.22% |
| Brain vs Xiaoyu | 7–8 | 46.67% |
| Brain vs Jack-8 | 7–8 | 46.67% |
| Brain vs Lee | 5–10 | 33.33% |
| Brain vs Shaheen | 10–4 | 71.43% |
| Brain vs Leroy | 6–8 | 42.86% |
| Brain vs Jun | 8–6 | 57.14% |
| Brain vs Claudio | 7–6 | 53.85% |
| Brain vs Kuma | 5–8 | 38.46% |
| Brain vs Bryan | 3–9 | 25.00% |
| Brain vs Alisa | 3–5–1 | 37.50% |
| Brain vs Raven | 6–3 | 66.67% |
| Brain vs Devil Jin | 4–4 | 50.00% |
| Brain vs Panda | 4–4 | 50.00% |
| Brain vs Zafina | 5–3 | 62.50% |
| Brain vs Leo | 3–3 | 50.00% |
| Brain vs Heihachi | 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.