| Steffieboy vs Reina | 10–11 | 47.62% |
| Steffieboy vs Kazuya | 3–16 | 15.79% |
| Steffieboy vs Hwoarang | 3–13 | 18.75% |
| Steffieboy vs Victor | 4–11 | 26.67% |
| Steffieboy vs Law | 5–9 | 35.71% |
| Steffieboy vs Steve | 5–9 | 35.71% |
| Steffieboy vs Lidia | 6–4 | 60.00% |
| Steffieboy vs King | 5–4 | 55.56% |
| Steffieboy vs Jin | 4–5 | 44.44% |
| Steffieboy vs Bryan | 0–8 | 0.00% |
| Steffieboy vs Lili | 4–4 | 50.00% |
| Steffieboy vs Yoshimitsu | 3–4 | 42.86% |
| Steffieboy vs Jun | 2–5 | 28.57% |
| Steffieboy vs Jack-8 | 1–5 | 16.67% |
| Steffieboy vs Feng | 4–2 | 66.67% |
| Steffieboy vs Dragunov | 1–5 | 16.67% |
| Steffieboy vs Shaheen | 2–4 | 33.33% |
| Steffieboy vs Alisa | 2–3 | 40.00% |
| Steffieboy vs Clive | 2–3 | 40.00% |
| Steffieboy vs Armor King | 2–3 | 40.00% |
| Steffieboy vs Nina | 2–2 | 50.00% |
| Steffieboy vs Lee | 2–2 | 50.00% |
| Steffieboy vs Xiaoyu | 2–1 | 66.67% |
| Steffieboy vs Azucena | 2–1 | 66.67% |
| Steffieboy vs Paul | 1–1 | 50.00% |
| Steffieboy vs Devil Jin | 2–0 | 100.00% |
| Steffieboy vs Lars | 2–0 | 100.00% |
| Steffieboy vs Claudio | 0–2 | 0.00% |
| Steffieboy vs Raven | 0–2 | 0.00% |
| Steffieboy vs Fahkumram | 0–2 | 0.00% |
| Steffieboy vs Eddy | 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.