| Stephan vs Reina | 8–8 | 50.00% |
| Stephan vs Eddy | 4–12 | 25.00% |
| Stephan vs Law | 8–4 | 66.67% |
| Stephan vs King | 4–7 | 36.36% |
| Stephan vs Yoshimitsu | 5–5 | 50.00% |
| Stephan vs Asuka | 5–5 | 50.00% |
| Stephan vs Dragunov | 3–7 | 30.00% |
| Stephan vs Victor | 4–6 | 40.00% |
| Stephan vs Xiaoyu | 8–1 | 88.89% |
| Stephan vs Steve | 4–5 | 44.44% |
| Stephan vs Claudio | 3–4 | 42.86% |
| Stephan vs Lili | 2–4 | 33.33% |
| Stephan vs Lars | 2–4 | 33.33% |
| Stephan vs Lee | 6–0 | 100.00% |
| Stephan vs Hwoarang | 4–1 | 80.00% |
| Stephan vs Jin | 1–4 | 20.00% |
| Stephan vs Devil Jin | 4–1 | 80.00% |
| Stephan vs Jun | 3–2 | 60.00% |
| Stephan vs Azucena | 4–1 | 80.00% |
| Stephan vs Paul | 2–2 | 50.00% |
| Stephan vs Bryan | 2–2 | 50.00% |
| Stephan vs Nina | 2–2 | 50.00% |
| Stephan vs Kuma | 0–3 | 0.00% |
| Stephan vs Raven | 3–0 | 100.00% |
| Stephan vs Kazuya | 0–2 | 0.00% |
| Stephan vs Leo | 2–0 | 100.00% |
| Stephan vs Alisa | 2–0 | 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.