| YunSei vs Reina | 15–2 | 88.24% |
| YunSei vs King | 3–10 | 23.08% |
| YunSei vs Jin | 8–5 | 61.54% |
| YunSei vs Victor | 6–7 | 46.15% |
| YunSei vs Steve | 5–5 | 50.00% |
| YunSei vs Dragunov | 5–4 | 55.56% |
| YunSei vs Feng | 7–1 | 87.50% |
| YunSei vs Kazuya | 2–5 | 28.57% |
| YunSei vs Lili | 2–5 | 28.57% |
| YunSei vs Paul | 1–5 | 16.67% |
| YunSei vs Law | 4–1 | 80.00% |
| YunSei vs Hwoarang | 1–4 | 20.00% |
| YunSei vs Xiaoyu | 1–4 | 20.00% |
| YunSei vs Devil Jin | 1–4 | 20.00% |
| YunSei vs Fahkumram | 4–1 | 80.00% |
| YunSei vs Bryan | 2–2 | 50.00% |
| YunSei vs Alisa | 2–2 | 50.00% |
| YunSei vs Jun | 0–4 | 0.00% |
| YunSei vs Lidia | 0–4 | 0.00% |
| YunSei vs Heihachi | 0–4 | 0.00% |
| YunSei vs Yoshimitsu | 1–2 | 33.33% |
| YunSei vs Nina | 1–2 | 33.33% |
| YunSei vs Clive | 0–3 | 0.00% |
| YunSei vs Armor King | 1–2 | 33.33% |
| YunSei vs Asuka | 2–0 | 100.00% |
| YunSei vs Leo | 0–2 | 0.00% |
| YunSei vs Claudio | 1–1 | 50.00% |
| YunSei vs Shaheen | 0–2 | 0.00% |
| YunSei vs Eddy | 1–1 | 50.00% |
| YunSei vs Jack-8 | 1–0 | 100.00% |
| YunSei vs Lars | 0–1 | 0.00% |
| YunSei vs Anna | 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.