| Stef vs King | 9–11 | 45.00% |
| Stef vs Law | 3–7 | 30.00% |
| Stef vs Bryan | 2–8 | 20.00% |
| Stef vs Jin | 6–3 | 66.67% |
| Stef vs Asuka | 3–4 | 42.86% |
| Stef vs Nina | 4–3 | 57.14% |
| Stef vs Eddy | 1–6 | 14.29% |
| Stef vs Yoshimitsu | 3–3 | 50.00% |
| Stef vs Kazuya | 2–4 | 33.33% |
| Stef vs Xiaoyu | 1–4 | 20.00% |
| Stef vs Reina | 4–1 | 80.00% |
| Stef vs Victor | 3–2 | 60.00% |
| Stef vs Lidia | 2–3 | 40.00% |
| Stef vs Hwoarang | 0–4 | 0.00% |
| Stef vs Steve | 2–2 | 50.00% |
| Stef vs Devil Jin | 2–1 | 66.67% |
| Stef vs Lars | 1–2 | 33.33% |
| Stef vs Paul | 0–2 | 0.00% |
| Stef vs Lili | 2–0 | 100.00% |
| Stef vs Dragunov | 0–2 | 0.00% |
| Stef vs Leo | 2–0 | 100.00% |
| Stef vs Anna | 0–2 | 0.00% |
| Stef vs Alisa | 1–0 | 100.00% |
| Stef vs Claudio | 0–1 | 0.00% |
| Stef vs Kuma | 0–1 | 0.00% |
| Stef vs Zafina | 0–1 | 0.00% |
| Stef vs Jun | 1–0 | 100.00% |
| Stef vs Clive | 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.