| Assassin vs Eddy | 13–6 | 68.42% |
| Assassin vs King | 11–3 | 78.57% |
| Assassin vs Hwoarang | 9–5 | 64.29% |
| Assassin vs Jin | 7–5 | 58.33% |
| Assassin vs Asuka | 7–4 | 63.64% |
| Assassin vs Bryan | 5–3 | 62.50% |
| Assassin vs Kazuya | 4–3 | 57.14% |
| Assassin vs Lili | 4–3 | 57.14% |
| Assassin vs Reina | 7–0 | 100.00% |
| Assassin vs Dragunov | 3–2 | 60.00% |
| Assassin vs Jun | 4–1 | 80.00% |
| Assassin vs Xiaoyu | 2–2 | 50.00% |
| Assassin vs Steve | 4–0 | 100.00% |
| Assassin vs Nina | 2–2 | 50.00% |
| Assassin vs Lee | 4–0 | 100.00% |
| Assassin vs Kuma | 2–2 | 50.00% |
| Assassin vs Victor | 3–1 | 75.00% |
| Assassin vs Raven | 3–1 | 75.00% |
| Assassin vs Lars | 2–1 | 66.67% |
| Assassin vs Law | 2–0 | 100.00% |
| Assassin vs Yoshimitsu | 1–1 | 50.00% |
| Assassin vs Feng | 2–0 | 100.00% |
| Assassin vs Azucena | 2–0 | 100.00% |
| Assassin vs Paul | 1–0 | 100.00% |
| Assassin vs Jack-8 | 1–0 | 100.00% |
| Assassin vs Devil Jin | 0–1 | 0.00% |
| Assassin vs Alisa | 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.