| Sira vs Dragunov | 5–40 | 11.11% |
| Sira vs King | 6–29 | 17.14% |
| Sira vs Kazuya | 16–19 | 45.71% |
| Sira vs Heihachi | 16–14 | 53.33% |
| Sira vs Law | 4–25 | 13.79% |
| Sira vs Hwoarang | 8–14 | 36.36% |
| Sira vs Reina | 9–13 | 40.91% |
| Sira vs Yoshimitsu | 6–13 | 31.58% |
| Sira vs Paul | 4–14 | 22.22% |
| Sira vs Devil Jin | 5–13 | 27.78% |
| Sira vs Steve | 5–12 | 29.41% |
| Sira vs Bryan | 6–10 | 37.50% |
| Sira vs Jin | 2–11 | 15.38% |
| Sira vs Lidia | 4–9 | 30.77% |
| Sira vs Feng | 1–11 | 8.33% |
| Sira vs Leroy | 7–5 | 58.33% |
| Sira vs Jack-8 | 0–11 | 0.00% |
| Sira vs Jun | 3–8 | 27.27% |
| Sira vs Alisa | 3–7 | 30.00% |
| Sira vs Claudio | 3–7 | 30.00% |
| Sira vs Nina | 4–6 | 40.00% |
| Sira vs Asuka | 2–7 | 22.22% |
| Sira vs Lili | 2–7 | 22.22% |
| Sira vs Victor | 1–8 | 11.11% |
| Sira vs Lee | 1–7 | 12.50% |
| Sira vs Azucena | 0–8 | 0.00% |
| Sira vs Xiaoyu | 4–3 | 57.14% |
| Sira vs Lars | 2–5 | 28.57% |
| Sira vs Kuma | 1–6 | 14.29% |
| Sira vs Eddy | 4–2 | 66.67% |
| Sira vs Shaheen | 3–1 | 75.00% |
| Sira vs Leo | 2–1 | 66.67% |
| Sira vs Zafina | 0–2 | 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.