| Sifir vs Reina | 21–30 | 41.18% |
| Sifir vs King | 14–34 | 29.17% |
| Sifir vs Jin | 13–31 | 29.55% |
| Sifir vs Kazuya | 15–21 | 41.67% |
| Sifir vs Azucena | 14–16 | 46.67% |
| Sifir vs Steve | 14–15 | 48.28% |
| Sifir vs Hwoarang | 10–16 | 38.46% |
| Sifir vs Bryan | 7–16 | 30.43% |
| Sifir vs Eddy | 12–11 | 52.17% |
| Sifir vs Dragunov | 8–14 | 36.36% |
| Sifir vs Paul | 6–15 | 28.57% |
| Sifir vs Jun | 7–14 | 33.33% |
| Sifir vs Lili | 10–10 | 50.00% |
| Sifir vs Devil Jin | 10–8 | 55.56% |
| Sifir vs Feng | 6–12 | 33.33% |
| Sifir vs Leo | 6–12 | 33.33% |
| Sifir vs Asuka | 6–11 | 35.29% |
| Sifir vs Xiaoyu | 4–11 | 26.67% |
| Sifir vs Law | 4–9 | 30.77% |
| Sifir vs Victor | 8–4 | 66.67% |
| Sifir vs Lars | 6–5 | 54.55% |
| Sifir vs Alisa | 2–8 | 20.00% |
| Sifir vs Kuma | 5–5 | 50.00% |
| Sifir vs Yoshimitsu | 2–7 | 22.22% |
| Sifir vs Shaheen | 3–5 | 37.50% |
| Sifir vs Raven | 4–4 | 50.00% |
| Sifir vs Jack-8 | 2–5 | 28.57% |
| Sifir vs Claudio | 2–4 | 33.33% |
| Sifir vs Lee | 5–1 | 83.33% |
| Sifir vs Leroy | 3–2 | 60.00% |
| Sifir vs Panda | 0–2 | 0.00% |
| Sifir vs Nina | 1–0 | 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.