| Stefff vs Kazuya | 71–95 | 42.77% |
| Stefff vs Jin | 61–78 | 43.88% |
| Stefff vs King | 60–75 | 44.44% |
| Stefff vs Hwoarang | 62–50 | 55.36% |
| Stefff vs Reina | 48–44 | 52.17% |
| Stefff vs Law | 43–47 | 47.78% |
| Stefff vs Steve | 45–36 | 55.56% |
| Stefff vs Yoshimitsu | 27–42 | 39.13% |
| Stefff vs Dragunov | 30–34 | 46.88% |
| Stefff vs Victor | 26–36 | 41.94% |
| Stefff vs Paul | 35–25 | 58.33% |
| Stefff vs Eddy | 27–33 | 45.00% |
| Stefff vs Bryan | 21–36 | 36.84% |
| Stefff vs Lee | 24–28 | 46.15% |
| Stefff vs Lidia | 32–20 | 61.54% |
| Stefff vs Heihachi | 25–25 | 50.00% |
| Stefff vs Azucena | 33–15 | 68.75% |
| Stefff vs Lili | 33–14 | 70.21% |
| Stefff vs Lars | 22–24 | 47.83% |
| Stefff vs Nina | 19–27 | 41.30% |
| Stefff vs Asuka | 16–27 | 37.21% |
| Stefff vs Feng | 18–21 | 46.15% |
| Stefff vs Alisa | 18–21 | 46.15% |
| Stefff vs Xiaoyu | 22–15 | 59.46% |
| Stefff vs Jun | 16–20 | 44.44% |
| Stefff vs Devil Jin | 22–13 | 62.86% |
| Stefff vs Jack-8 | 13–21 | 38.24% |
| Stefff vs Zafina | 8–12 | 40.00% |
| Stefff vs Leroy | 7–12 | 36.84% |
| Stefff vs Kuma | 7–11 | 38.89% |
| Stefff vs Leo | 7–4 | 63.64% |
| Stefff vs Claudio | 5–6 | 45.45% |
| Stefff vs Shaheen | 4–7 | 36.36% |
| Stefff vs Raven | 4–4 | 50.00% |
| Stefff vs Panda | 0–4 | 0.00% |
| Stefff vs Anna | 1–3 | 25.00% |
| Stefff vs Clive | 1–2 | 33.33% |
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.