| Niffum vs Jin | 43–28 | 60.56% |
| Niffum vs Reina | 23–29 | 44.23% |
| Niffum vs Kazuya | 23–19 | 54.76% |
| Niffum vs King | 22–18–1 | 55.00% |
| Niffum vs Asuka | 18–14 | 56.25% |
| Niffum vs Law | 16–10 | 61.54% |
| Niffum vs Bryan | 13–10 | 56.52% |
| Niffum vs Hwoarang | 12–10 | 54.55% |
| Niffum vs Steve | 18–4 | 81.82% |
| Niffum vs Eddy | 12–9 | 57.14% |
| Niffum vs Yoshimitsu | 12–8 | 60.00% |
| Niffum vs Dragunov | 10–10 | 50.00% |
| Niffum vs Lili | 10–9 | 52.63% |
| Niffum vs Paul | 8–9 | 47.06% |
| Niffum vs Lidia | 10–6 | 62.50% |
| Niffum vs Claudio | 8–7 | 53.33% |
| Niffum vs Jun | 11–4 | 73.33% |
| Niffum vs Lee | 4–10 | 28.57% |
| Niffum vs Xiaoyu | 5–8 | 38.46% |
| Niffum vs Alisa | 7–6 | 53.85% |
| Niffum vs Nina | 7–4 | 63.64% |
| Niffum vs Victor | 5–6 | 45.45% |
| Niffum vs Devil Jin | 4–6 | 40.00% |
| Niffum vs Azucena | 6–4 | 60.00% |
| Niffum vs Feng | 4–4 | 50.00% |
| Niffum vs Raven | 5–3 | 62.50% |
| Niffum vs Lars | 2–5 | 28.57% |
| Niffum vs Kuma | 2–1 | 66.67% |
| Niffum vs Leroy | 1–2 | 33.33% |
| Niffum vs Clive | 2–1 | 66.67% |
| Niffum vs Jack-8 | 0–2 | 0.00% |
| Niffum vs Leo | 1–1 | 50.00% |
| Niffum vs Shaheen | 1–1 | 50.00% |
| Niffum vs Panda | 1–0 | 100.00% |
| Niffum 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.