| Assassin_21 vs Law | 5–6 | 45.45% |
| Assassin_21 vs Eddy | 3–3 | 50.00% |
| Assassin_21 vs Asuka | 3–2 | 60.00% |
| Assassin_21 vs Jun | 3–2 | 60.00% |
| Assassin_21 vs Yoshimitsu | 1–2 | 33.33% |
| Assassin_21 vs Heihachi | 1–2 | 33.33% |
| Assassin_21 vs King | 0–2 | 0.00% |
| Assassin_21 vs Hwoarang | 2–0 | 100.00% |
| Assassin_21 vs Jin | 2–0 | 100.00% |
| Assassin_21 vs Bryan | 0–2 | 0.00% |
| Assassin_21 vs Azucena | 2–0 | 100.00% |
| Assassin_21 vs Clive | 2–0 | 100.00% |
| Assassin_21 vs Steve | 0–1 | 0.00% |
| Assassin_21 vs Leo | 1–0 | 100.00% |
| Assassin_21 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.