| Neifirst vs Azucena | 6–8 | 42.86% |
| Neifirst vs King | 9–4 | 69.23% |
| Neifirst vs Jin | 5–6 | 45.45% |
| Neifirst vs Asuka | 1–10 | 9.09% |
| Neifirst vs Lars | 6–5 | 54.55% |
| Neifirst vs Kazuya | 2–7 | 22.22% |
| Neifirst vs Law | 3–5 | 37.50% |
| Neifirst vs Lili | 4–4 | 50.00% |
| Neifirst vs Jun | 2–6 | 25.00% |
| Neifirst vs Bryan | 4–2 | 66.67% |
| Neifirst vs Hwoarang | 1–4 | 20.00% |
| Neifirst vs Reina | 2–3 | 40.00% |
| Neifirst vs Fahkumram | 0–4 | 0.00% |
| Neifirst vs Paul | 1–2 | 33.33% |
| Neifirst vs Nina | 2–1 | 66.67% |
| Neifirst vs Leroy | 2–1 | 66.67% |
| Neifirst vs Yoshimitsu | 0–2 | 0.00% |
| Neifirst vs Xiaoyu | 2–0 | 100.00% |
| Neifirst vs Jack-8 | 0–2 | 0.00% |
| Neifirst vs Lee | 1–1 | 50.00% |
| Neifirst vs Raven | 0–2 | 0.00% |
| Neifirst vs Eddy | 0–2 | 0.00% |
| Neifirst vs Heihachi | 2–0 | 100.00% |
| Neifirst vs Steve | 1–0 | 100.00% |
| Neifirst vs Devil Jin | 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.