| Stefon vs Hwoarang | 14–4 | 77.78% |
| Stefon vs Jin | 14–4 | 77.78% |
| Stefon vs Heihachi | 10–5 | 66.67% |
| Stefon vs Bryan | 8–4 | 66.67% |
| Stefon vs Kazuya | 6–5 | 54.55% |
| Stefon vs Lidia | 8–3 | 72.73% |
| Stefon vs Leo | 5–4 | 55.56% |
| Stefon vs King | 4–4 | 50.00% |
| Stefon vs Reina | 7–1 | 87.50% |
| Stefon vs Eddy | 5–3 | 62.50% |
| Stefon vs Nina | 2–5 | 28.57% |
| Stefon vs Azucena | 5–2 | 71.43% |
| Stefon vs Law | 4–2 | 66.67% |
| Stefon vs Yoshimitsu | 6–0 | 100.00% |
| Stefon vs Xiaoyu | 4–2 | 66.67% |
| Stefon vs Lars | 3–3 | 50.00% |
| Stefon vs Steve | 3–2 | 60.00% |
| Stefon vs Asuka | 2–3 | 40.00% |
| Stefon vs Dragunov | 1–4 | 20.00% |
| Stefon vs Kuma | 4–1 | 80.00% |
| Stefon vs Lili | 4–0 | 100.00% |
| Stefon vs Jun | 2–2 | 50.00% |
| Stefon vs Raven | 1–3 | 25.00% |
| Stefon vs Anna | 3–1 | 75.00% |
| Stefon vs Paul | 1–2 | 33.33% |
| Stefon vs Jack-8 | 1–2 | 33.33% |
| Stefon vs Devil Jin | 3–0 | 100.00% |
| Stefon vs Claudio | 1–2 | 33.33% |
| Stefon vs Shaheen | 2–1 | 66.67% |
| Stefon vs Victor | 2–1 | 66.67% |
| Stefon vs Lee | 0–2 | 0.00% |
| Stefon vs Zafina | 2–0 | 100.00% |
| Stefon vs Clive | 2–0 | 100.00% |
| Stefon vs Fahkumram | 2–0 | 100.00% |
| Stefon vs Feng | 1–0 | 100.00% |
| Stefon vs Leroy | 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.