| Siakin vs Kuma | 3–4 | 42.86% |
| Siakin vs Law | 4–2 | 66.67% |
| Siakin vs Jin | 4–2 | 66.67% |
| Siakin vs Dragunov | 4–2 | 66.67% |
| Siakin vs Reina | 4–2 | 66.67% |
| Siakin vs King | 4–1 | 80.00% |
| Siakin vs Hwoarang | 3–1 | 75.00% |
| Siakin vs Lee | 4–0 | 100.00% |
| Siakin vs Bryan | 2–1 | 66.67% |
| Siakin vs Asuka | 3–0 | 100.00% |
| Siakin vs Alisa | 2–1 | 66.67% |
| Siakin vs Nina | 1–2 | 33.33% |
| Siakin vs Panda | 1–2 | 33.33% |
| Siakin vs Jun | 2–1 | 66.67% |
| Siakin vs Clive | 2–1 | 66.67% |
| Siakin vs Steve | 2–0 | 100.00% |
| Siakin vs Leo | 2–0 | 100.00% |
| Siakin vs Victor | 2–0 | 100.00% |
| Siakin vs Lidia | 2–0 | 100.00% |
| Siakin vs Miary Zo | 0–2 | 0.00% |
| Siakin vs Yoshimitsu | 1–0 | 100.00% |
| Siakin vs Devil Jin | 1–0 | 100.00% |
| Siakin vs Leroy | 1–0 | 100.00% |
| Siakin vs Azucena | 1–0 | 100.00% |
| Siakin vs Eddy | 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.