| Siffster vs King | 34–30 | 53.12% |
| Siffster vs Jin | 28–34 | 45.16% |
| Siffster vs Reina | 26–26 | 50.00% |
| Siffster vs Bryan | 17–32 | 34.69% |
| Siffster vs Dragunov | 12–32 | 27.27% |
| Siffster vs Kazuya | 20–20 | 50.00% |
| Siffster vs Law | 27–11 | 71.05% |
| Siffster vs Hwoarang | 22–16 | 57.89% |
| Siffster vs Steve | 15–23 | 39.47% |
| Siffster vs Paul | 24–12 | 66.67% |
| Siffster vs Yoshimitsu | 15–18 | 45.45% |
| Siffster vs Lili | 18–14 | 56.25% |
| Siffster vs Asuka | 13–17 | 43.33% |
| Siffster vs Alisa | 6–15 | 28.57% |
| Siffster vs Jun | 8–12 | 40.00% |
| Siffster vs Nina | 4–15 | 21.05% |
| Siffster vs Victor | 9–10 | 47.37% |
| Siffster vs Feng | 5–13 | 27.78% |
| Siffster vs Lee | 9–9 | 50.00% |
| Siffster vs Eddy | 4–12 | 25.00% |
| Siffster vs Leroy | 7–6 | 53.85% |
| Siffster vs Azucena | 6–7 | 46.15% |
| Siffster vs Kuma | 7–5 | 58.33% |
| Siffster vs Xiaoyu | 4–7 | 36.36% |
| Siffster vs Devil Jin | 4–7 | 36.36% |
| Siffster vs Raven | 7–4 | 63.64% |
| Siffster vs Lidia | 3–6 | 33.33% |
| Siffster vs Leo | 2–6 | 25.00% |
| Siffster vs Heihachi | 4–4 | 50.00% |
| Siffster vs Claudio | 2–5 | 28.57% |
| Siffster vs Lars | 4–2 | 66.67% |
| Siffster vs Jack-8 | 1–4 | 20.00% |
| Siffster vs Zafina | 0–4 | 0.00% |
| Siffster vs Shaheen | 0–2 | 0.00% |
| Siffster vs Panda | 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.