| Nefarionek vs Heihachi | 10–6 | 62.50% |
| Nefarionek vs Reina | 11–3 | 78.57% |
| Nefarionek vs Law | 6–7 | 46.15% |
| Nefarionek vs Lili | 8–5 | 61.54% |
| Nefarionek vs Jin | 10–2 | 83.33% |
| Nefarionek vs Steve | 6–6 | 50.00% |
| Nefarionek vs Bryan | 5–5 | 50.00% |
| Nefarionek vs Kazuya | 6–4 | 60.00% |
| Nefarionek vs Nina | 4–6 | 40.00% |
| Nefarionek vs Victor | 8–2 | 80.00% |
| Nefarionek vs Dragunov | 5–4 | 55.56% |
| Nefarionek vs Leroy | 6–3 | 66.67% |
| Nefarionek vs King | 4–3 | 57.14% |
| Nefarionek vs Xiaoyu | 3–4 | 42.86% |
| Nefarionek vs Feng | 1–4 | 20.00% |
| Nefarionek vs Jun | 3–2 | 60.00% |
| Nefarionek vs Devil Jin | 3–1 | 75.00% |
| Nefarionek vs Lee | 2–2 | 50.00% |
| Nefarionek vs Eddy | 3–1 | 75.00% |
| Nefarionek vs Lidia | 4–0 | 100.00% |
| Nefarionek vs Yoshimitsu | 1–2 | 33.33% |
| Nefarionek vs Hwoarang | 3–0 | 100.00% |
| Nefarionek vs Alisa | 0–1 | 0.00% |
| Nefarionek vs Shaheen | 1–0 | 100.00% |
| Nefarionek vs Kuma | 1–0 | 100.00% |
| Nefarionek vs Zafina | 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.