| niffa vs Kazuya | 22–30 | 42.31% |
| niffa vs Reina | 16–23 | 41.03% |
| niffa vs Law | 19–17 | 52.78% |
| niffa vs King | 19–17 | 52.78% |
| niffa vs Victor | 13–19–1 | 40.62% |
| niffa vs Steve | 13–18 | 41.94% |
| niffa vs Jin | 12–18 | 40.00% |
| niffa vs Clive | 8–21 | 27.59% |
| niffa vs Dragunov | 13–13 | 50.00% |
| niffa vs Bryan | 8–17 | 32.00% |
| niffa vs Hwoarang | 10–14 | 41.67% |
| niffa vs Lili | 14–9 | 60.87% |
| niffa vs Devil Jin | 8–14 | 36.36% |
| niffa vs Paul | 6–14 | 30.00% |
| niffa vs Yoshimitsu | 2–16 | 11.11% |
| niffa vs Jun | 5–12 | 29.41% |
| niffa vs Lee | 3–11 | 21.43% |
| niffa vs Xiaoyu | 7–6 | 53.85% |
| niffa vs Heihachi | 6–7 | 46.15% |
| niffa vs Lidia | 5–7 | 41.67% |
| niffa vs Asuka | 4–7 | 36.36% |
| niffa vs Fahkumram | 8–3 | 72.73% |
| niffa vs Kuma | 2–8 | 20.00% |
| niffa vs Eddy | 0–10 | 0.00% |
| niffa vs Azucena | 5–4 | 55.56% |
| niffa vs Alisa | 2–6 | 25.00% |
| niffa vs Leo | 3–3 | 50.00% |
| niffa vs Shaheen | 2–4 | 33.33% |
| niffa vs Jack-8 | 3–2 | 60.00% |
| niffa vs Lars | 2–2 | 50.00% |
| niffa vs Claudio | 2–1 | 66.67% |
| niffa vs Nina | 1–2 | 33.33% |
| niffa vs Panda | 2–1 | 66.67% |
| niffa vs Anna | 0–2 | 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.