| NiiA vs Jin | 5–9 | 35.71% |
| NiiA vs Reina | 5–5 | 50.00% |
| NiiA vs Paul | 4–5 | 44.44% |
| NiiA vs Law | 1–8 | 11.11% |
| NiiA vs Kazuya | 5–4 | 55.56% |
| NiiA vs Clive | 2–7 | 22.22% |
| NiiA vs Dragunov | 1–7 | 12.50% |
| NiiA vs King | 4–1 | 80.00% |
| NiiA vs Alisa | 0–5 | 0.00% |
| NiiA vs Hwoarang | 2–2 | 50.00% |
| NiiA vs Asuka | 2–2 | 50.00% |
| NiiA vs Lars | 0–4 | 0.00% |
| NiiA vs Leo | 2–1 | 66.67% |
| NiiA vs Claudio | 2–1 | 66.67% |
| NiiA vs Panda | 2–1 | 66.67% |
| NiiA vs Yoshimitsu | 0–2 | 0.00% |
| NiiA vs Feng | 0–2 | 0.00% |
| NiiA vs Kuma | 0–2 | 0.00% |
| NiiA vs Zafina | 2–0 | 100.00% |
| NiiA vs Eddy | 0–2 | 0.00% |
| NiiA vs Bryan | 0–1 | 0.00% |
| NiiA vs Lili | 0–1 | 0.00% |
| NiiA vs Nina | 1–0 | 100.00% |
| NiiA vs Victor | 0–1 | 0.00% |
| NiiA vs Heihachi | 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.