| Stepfer vs Jin | 8–11 | 42.11% |
| Stepfer vs King | 4–9 | 30.77% |
| Stepfer vs Dragunov | 4–5 | 44.44% |
| Stepfer vs Paul | 2–5 | 28.57% |
| Stepfer vs Hwoarang | 4–2 | 66.67% |
| Stepfer vs Reina | 1–4 | 20.00% |
| Stepfer vs Kazuya | 1–3 | 25.00% |
| Stepfer vs Asuka | 2–2 | 50.00% |
| Stepfer vs Lidia | 0–4 | 0.00% |
| Stepfer vs Xiaoyu | 2–1 | 66.67% |
| Stepfer vs Bryan | 1–2 | 33.33% |
| Stepfer vs Alisa | 2–1 | 66.67% |
| Stepfer vs Azucena | 1–2 | 33.33% |
| Stepfer vs Devil Jin | 0–2 | 0.00% |
| Stepfer vs Lili | 2–0 | 100.00% |
| Stepfer vs Shaheen | 2–0 | 100.00% |
| Stepfer vs Eddy | 0–2 | 0.00% |
| Stepfer vs Clive | 2–0 | 100.00% |
| Stepfer vs Leroy | 1–0 | 100.00% |
| Stepfer vs Raven | 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.