| NEFFYSX vs Eddy | 6–2 | 75.00% |
| NEFFYSX vs Law | 2–3 | 40.00% |
| NEFFYSX vs Jin | 2–2 | 50.00% |
| NEFFYSX vs Lars | 2–2 | 50.00% |
| NEFFYSX vs Zafina | 2–2 | 50.00% |
| NEFFYSX vs Reina | 4–0 | 100.00% |
| NEFFYSX vs Leo | 1–2 | 33.33% |
| NEFFYSX vs Jun | 2–1 | 66.67% |
| NEFFYSX vs Victor | 2–1 | 66.67% |
| NEFFYSX vs Kazuya | 2–1 | 66.67% |
| NEFFYSX vs Paul | 2–0 | 100.00% |
| NEFFYSX vs King | 1–1 | 50.00% |
| NEFFYSX vs Hwoarang | 1–1 | 50.00% |
| NEFFYSX vs Steve | 2–0 | 100.00% |
| NEFFYSX vs Asuka | 1–1 | 50.00% |
| NEFFYSX vs Yoshimitsu | 1–1 | 50.00% |
| NEFFYSX vs Lili | 2–0 | 100.00% |
| NEFFYSX vs Feng | 0–1 | 0.00% |
| NEFFYSX vs Shaheen | 0–1 | 0.00% |
| NEFFYSX vs Nina | 0–1 | 0.00% |
| NEFFYSX vs Azucena | 1–0 | 100.00% |
| NEFFYSX vs Jack-8 | 0–1 | 0.00% |
| NEFFYSX vs Raven | 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.