| NamiiKey vs Kazuya | 5–2 | 71.43% |
| NamiiKey vs Hwoarang | 5–1 | 83.33% |
| NamiiKey vs Bryan | 4–2 | 66.67% |
| NamiiKey vs Reina | 4–2 | 66.67% |
| NamiiKey vs Jin | 3–2 | 60.00% |
| NamiiKey vs Steve | 5–0 | 100.00% |
| NamiiKey vs King | 4–0 | 100.00% |
| NamiiKey vs Dragunov | 2–2 | 50.00% |
| NamiiKey vs Leo | 2–2 | 50.00% |
| NamiiKey vs Lidia | 4–0 | 100.00% |
| NamiiKey vs Asuka | 1–2 | 33.33% |
| NamiiKey vs Lars | 3–0 | 100.00% |
| NamiiKey vs Shaheen | 1–2 | 33.33% |
| NamiiKey vs Jun | 2–1 | 66.67% |
| NamiiKey vs Eddy | 1–2 | 33.33% |
| NamiiKey vs Anna | 2–1 | 66.67% |
| NamiiKey vs Xiaoyu | 2–0 | 100.00% |
| NamiiKey vs Lili | 0–2 | 0.00% |
| NamiiKey vs Claudio | 2–0 | 100.00% |
| NamiiKey vs Lee | 2–0 | 100.00% |
| NamiiKey vs Azucena | 2–0 | 100.00% |
| NamiiKey vs Raven | 0–2 | 0.00% |
| NamiiKey vs Feng | 1–0 | 100.00% |
| NamiiKey vs Clive | 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.