| Siah vs Miary Zo | 8–4 | 66.67% |
| Siah vs King | 6–3 | 66.67% |
| Siah vs Jin | 6–3 | 66.67% |
| Siah vs Reina | 5–2 | 71.43% |
| Siah vs Lars | 2–2 | 50.00% |
| Siah vs Claudio | 2–2 | 50.00% |
| Siah vs Nina | 1–3 | 25.00% |
| Siah vs Clive | 3–1 | 75.00% |
| Siah vs Kazuya | 2–1 | 66.67% |
| Siah vs Azucena | 2–1 | 66.67% |
| Siah vs Victor | 2–1 | 66.67% |
| Siah vs Raven | 3–0 | 100.00% |
| Siah vs Anna | 1–2 | 33.33% |
| Siah vs Hwoarang | 2–0 | 100.00% |
| Siah vs Steve | 2–0 | 100.00% |
| Siah vs Jack-8 | 1–1 | 50.00% |
| Siah vs Lili | 0–2 | 0.00% |
| Siah vs Dragunov | 2–0 | 100.00% |
| Siah vs Alisa | 2–0 | 100.00% |
| Siah vs Lee | 2–0 | 100.00% |
| Siah vs Kuma | 1–1 | 50.00% |
| Siah vs Jun | 1–1 | 50.00% |
| Siah vs Eddy | 1–1 | 50.00% |
| Siah vs Lidia | 2–0 | 100.00% |
| Siah vs Law | 0–1 | 0.00% |
| Siah vs Asuka | 1–0 | 100.00% |
| Siah vs Leo | 0–1 | 0.00% |
| Siah vs Shaheen | 1–0 | 100.00% |
| Siah vs Zafina | 0–1 | 0.00% |
| Siah vs Fahkumram | 1–0 | 100.00% |
| Siah vs Armor King | 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.