| Siemi vs King | 1–6 | 14.29% |
| Siemi vs Reina | 4–2 | 66.67% |
| Siemi vs Jin | 1–4 | 20.00% |
| Siemi vs Lili | 3–2 | 60.00% |
| Siemi vs Lidia | 2–3 | 40.00% |
| Siemi vs Eddy | 2–3 | 40.00% |
| Siemi vs Steve | 2–2 | 50.00% |
| Siemi vs Dragunov | 2–2 | 50.00% |
| Siemi vs Victor | 2–2 | 50.00% |
| Siemi vs Raven | 3–1 | 75.00% |
| Siemi vs Kazuya | 2–1 | 66.67% |
| Siemi vs Hwoarang | 2–1 | 66.67% |
| Siemi vs Alisa | 1–2 | 33.33% |
| Siemi vs Law | 0–2 | 0.00% |
| Siemi vs Bryan | 0–2 | 0.00% |
| Siemi vs Jun | 1–1 | 50.00% |
| Siemi vs Asuka | 1–0 | 100.00% |
| Siemi vs Devil Jin | 0–1 | 0.00% |
| Siemi vs Lars | 0–1 | 0.00% |
| Siemi vs Nina | 0–1 | 0.00% |
| Siemi vs Leo | 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.