| Sion18 vs Yoshimitsu | 2–4 | 33.33% |
| Sion18 vs Hwoarang | 1–4 | 20.00% |
| Sion18 vs Reina | 1–4 | 20.00% |
| Sion18 vs King | 1–3 | 25.00% |
| Sion18 vs Asuka | 0–4 | 0.00% |
| Sion18 vs Kazuya | 2–1 | 66.67% |
| Sion18 vs Feng | 0–3 | 0.00% |
| Sion18 vs Eddy | 1–2 | 33.33% |
| Sion18 vs Law | 0–2 | 0.00% |
| Sion18 vs Jin | 2–0 | 100.00% |
| Sion18 vs Dragunov | 0–2 | 0.00% |
| Sion18 vs Victor | 0–2 | 0.00% |
| Sion18 vs Devil Jin | 0–1 | 0.00% |
| Sion18 vs Lili | 0–1 | 0.00% |
| Sion18 vs Claudio | 0–1 | 0.00% |
| Sion18 vs Azucena | 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.