| Neyfern vs Jin | 17–31 | 35.42% |
| Neyfern vs Hwoarang | 14–31 | 31.11% |
| Neyfern vs King | 12–28 | 30.00% |
| Neyfern vs Bryan | 16–24 | 40.00% |
| Neyfern vs Reina | 26–14 | 65.00% |
| Neyfern vs Steve | 18–20 | 47.37% |
| Neyfern vs Kazuya | 16–20 | 44.44% |
| Neyfern vs Asuka | 14–22 | 38.89% |
| Neyfern vs Dragunov | 12–24 | 33.33% |
| Neyfern vs Devil Jin | 11–23 | 32.35% |
| Neyfern vs Lili | 16–17 | 48.48% |
| Neyfern vs Heihachi | 9–22 | 29.03% |
| Neyfern vs Clive | 12–15 | 44.44% |
| Neyfern vs Anna | 12–11 | 52.17% |
| Neyfern vs Lars | 5–17 | 22.73% |
| Neyfern vs Jun | 12–10 | 54.55% |
| Neyfern vs Yoshimitsu | 7–13 | 35.00% |
| Neyfern vs Leroy | 10–9 | 52.63% |
| Neyfern vs Lidia | 10–9 | 52.63% |
| Neyfern vs Leo | 5–13 | 27.78% |
| Neyfern vs Azucena | 9–9 | 50.00% |
| Neyfern vs Law | 4–12 | 25.00% |
| Neyfern vs Xiaoyu | 10–6 | 62.50% |
| Neyfern vs Alisa | 4–12 | 25.00% |
| Neyfern vs Kuma | 8–8 | 50.00% |
| Neyfern vs Feng | 6–7 | 46.15% |
| Neyfern vs Lee | 7–5 | 58.33% |
| Neyfern vs Eddy | 0–12 | 0.00% |
| Neyfern vs Fahkumram | 6–6 | 50.00% |
| Neyfern vs Paul | 5–5 | 50.00% |
| Neyfern vs Victor | 4–6 | 40.00% |
| Neyfern vs Raven | 5–5 | 50.00% |
| Neyfern vs Claudio | 2–7 | 22.22% |
| Neyfern vs Jack-8 | 4–4 | 50.00% |
| Neyfern vs Zafina | 7–1 | 87.50% |
| Neyfern vs Shaheen | 2–2 | 50.00% |
| Neyfern vs Nina | 1–2 | 33.33% |
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.