| GSieira vs Heihachi | 58–60 | 49.15% |
| GSieira vs Jin | 46–31 | 59.74% |
| GSieira vs Kazuya | 30–26 | 53.57% |
| GSieira vs King | 31–24 | 56.36% |
| GSieira vs Hwoarang | 24–31 | 43.64% |
| GSieira vs Yoshimitsu | 20–29 | 40.82% |
| GSieira vs Bryan | 32–12 | 72.73% |
| GSieira vs Reina | 23–21 | 52.27% |
| GSieira vs Steve | 17–26 | 39.53% |
| GSieira vs Law | 24–17 | 58.54% |
| GSieira vs Paul | 15–21 | 41.67% |
| GSieira vs Dragunov | 17–19 | 47.22% |
| GSieira vs Lili | 22–9 | 70.97% |
| GSieira vs Jun | 18–13 | 58.06% |
| GSieira vs Victor | 15–16 | 48.39% |
| GSieira vs Azucena | 8–19 | 29.63% |
| GSieira vs Devil Jin | 8–18 | 30.77% |
| GSieira vs Lee | 14–12 | 53.85% |
| GSieira vs Lars | 12–13 | 48.00% |
| GSieira vs Jack-8 | 6–14 | 30.00% |
| GSieira vs Raven | 10–9 | 52.63% |
| GSieira vs Asuka | 7–8 | 46.67% |
| GSieira vs Eddy | 5–10 | 33.33% |
| GSieira vs Xiaoyu | 5–9 | 35.71% |
| GSieira vs Alisa | 6–8 | 42.86% |
| GSieira vs Claudio | 7–5 | 58.33% |
| GSieira vs Lidia | 4–7 | 36.36% |
| GSieira vs Feng | 2–8 | 20.00% |
| GSieira vs Nina | 7–3 | 70.00% |
| GSieira vs Kuma | 4–6 | 40.00% |
| GSieira vs Leroy | 4–6 | 40.00% |
| GSieira vs Panda | 2–4 | 33.33% |
| GSieira vs Zafina | 4–2 | 66.67% |
| GSieira vs Leo | 2–1 | 66.67% |
| GSieira vs Shaheen | 1–2 | 33.33% |
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.