| Niixor vs Jin | 6–12 | 33.33% |
| Niixor vs Kazuya | 9–9 | 50.00% |
| Niixor vs Bryan | 7–8 | 46.67% |
| Niixor vs Steve | 10–5 | 66.67% |
| Niixor vs Lili | 7–6 | 53.85% |
| Niixor vs Law | 6–6 | 50.00% |
| Niixor vs Feng | 6–6 | 50.00% |
| Niixor vs King | 6–5 | 54.55% |
| Niixor vs Eddy | 7–4 | 63.64% |
| Niixor vs Hwoarang | 2–6 | 25.00% |
| Niixor vs Azucena | 3–5 | 37.50% |
| Niixor vs Lee | 2–5 | 28.57% |
| Niixor vs Reina | 4–3 | 57.14% |
| Niixor vs Victor | 6–1 | 85.71% |
| Niixor vs Paul | 3–3 | 50.00% |
| Niixor vs Dragunov | 2–4 | 33.33% |
| Niixor vs Yoshimitsu | 1–4 | 20.00% |
| Niixor vs Alisa | 2–3 | 40.00% |
| Niixor vs Asuka | 0–4 | 0.00% |
| Niixor vs Devil Jin | 2–1 | 66.67% |
| Niixor vs Lars | 2–1 | 66.67% |
| Niixor vs Leo | 2–0 | 100.00% |
| Niixor vs Claudio | 2–0 | 100.00% |
| Niixor vs Nina | 0–2 | 0.00% |
| Niixor vs Kuma | 2–0 | 100.00% |
| Niixor vs Jun | 1–1 | 50.00% |
| Niixor vs Raven | 0–2 | 0.00% |
| Niixor vs Jack-8 | 1–0 | 100.00% |
| Niixor vs Zafina | 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.