| oisín vs Kazuya | 8–1 | 88.89% |
| oisín vs Lili | 6–0 | 100.00% |
| oisín vs Nina | 6–0 | 100.00% |
| oisín vs Azucena | 6–0 | 100.00% |
| oisín vs Hwoarang | 5–0 | 100.00% |
| oisín vs Bryan | 4–1 | 80.00% |
| oisín vs Reina | 5–0 | 100.00% |
| oisín vs Yoshimitsu | 3–1 | 75.00% |
| oisín vs Jin | 4–0 | 100.00% |
| oisín vs Dragunov | 4–0 | 100.00% |
| oisín vs Eddy | 4–0 | 100.00% |
| oisín vs Clive | 4–0 | 100.00% |
| oisín vs Law | 2–1 | 66.67% |
| oisín vs King | 2–1 | 66.67% |
| oisín vs Steve | 3–0 | 100.00% |
| oisín vs Jack-8 | 2–1 | 66.67% |
| oisín vs Feng | 2–1 | 66.67% |
| oisín vs Leo | 2–1 | 66.67% |
| oisín vs Lee | 2–1 | 66.67% |
| oisín vs Panda | 1–2 | 33.33% |
| oisín vs Jun | 3–0 | 100.00% |
| oisín vs Victor | 3–0 | 100.00% |
| oisín vs Paul | 2–0 | 100.00% |
| oisín vs Lars | 2–0 | 100.00% |
| oisín vs Shaheen | 2–0 | 100.00% |
| oisín vs Leroy | 2–0 | 100.00% |
| oisín vs Heihachi | 2–0 | 100.00% |
| oisín vs Asuka | 1–0 | 100.00% |
| oisín vs Devil Jin | 1–0 | 100.00% |
| oisín vs Zafina | 1–0 | 100.00% |
| oisín vs Raven | 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.