| siwon77 vs Steve | 6–6 | 50.00% |
| siwon77 vs Hwoarang | 5–5 | 50.00% |
| siwon77 vs Jun | 2–7 | 22.22% |
| siwon77 vs Jack-8 | 1–7 | 12.50% |
| siwon77 vs Asuka | 0–8 | 0.00% |
| siwon77 vs Dragunov | 3–5 | 37.50% |
| siwon77 vs Yoshimitsu | 3–4 | 42.86% |
| siwon77 vs Alisa | 4–2 | 66.67% |
| siwon77 vs Nina | 3–3 | 50.00% |
| siwon77 vs Jin | 2–3 | 40.00% |
| siwon77 vs Reina | 3–2 | 60.00% |
| siwon77 vs Law | 2–2 | 50.00% |
| siwon77 vs King | 1–3 | 25.00% |
| siwon77 vs Lars | 1–3 | 25.00% |
| siwon77 vs Lidia | 2–2 | 50.00% |
| siwon77 vs Paul | 2–1 | 66.67% |
| siwon77 vs Bryan | 0–3 | 0.00% |
| siwon77 vs Leo | 2–1 | 66.67% |
| siwon77 vs Claudio | 1–2 | 33.33% |
| siwon77 vs Victor | 0–3 | 0.00% |
| siwon77 vs Devil Jin | 1–1 | 50.00% |
| siwon77 vs Feng | 0–2 | 0.00% |
| siwon77 vs Kuma | 0–2 | 0.00% |
| siwon77 vs Panda | 0–2 | 0.00% |
| siwon77 vs Azucena | 0–2 | 0.00% |
| siwon77 vs Clive | 0–1 | 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.