| Stefi Co_Master vs Jun | 7–8 | 46.67% |
| Stefi Co_Master vs King | 3–3 | 50.00% |
| Stefi Co_Master vs Jin | 6–0 | 100.00% |
| Stefi Co_Master vs Kazuya | 6–0 | 100.00% |
| Stefi Co_Master vs Leo | 2–4 | 33.33% |
| Stefi Co_Master vs Hwoarang | 1–4 | 20.00% |
| Stefi Co_Master vs Devil Jin | 2–3 | 40.00% |
| Stefi Co_Master vs Reina | 3–2 | 60.00% |
| Stefi Co_Master vs Jack-8 | 1–3 | 25.00% |
| Stefi Co_Master vs Feng | 3–1 | 75.00% |
| Stefi Co_Master vs Nina | 2–2 | 50.00% |
| Stefi Co_Master vs Victor | 1–3 | 25.00% |
| Stefi Co_Master vs Steve | 3–0 | 100.00% |
| Stefi Co_Master vs Azucena | 2–1 | 66.67% |
| Stefi Co_Master vs Bryan | 1–1 | 50.00% |
| Stefi Co_Master vs Raven | 2–0 | 100.00% |
| Stefi Co_Master vs Law | 0–1 | 0.00% |
| Stefi Co_Master vs Yoshimitsu | 0–1 | 0.00% |
| Stefi Co_Master vs Dragunov | 0–1 | 0.00% |
| Stefi Co_Master vs Claudio | 1–0 | 100.00% |
| Stefi Co_Master vs Shaheen | 0–1 | 0.00% |
| Stefi Co_Master vs Lee | 0–1 | 0.00% |
| Stefi Co_Master vs Leroy | 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.