| Neph vs Jin | 31–30 | 50.82% |
| Neph vs Bryan | 26–22 | 54.17% |
| Neph vs Reina | 29–15 | 65.91% |
| Neph vs Kazuya | 21–18 | 53.85% |
| Neph vs King | 22–11 | 66.67% |
| Neph vs Dragunov | 15–18 | 45.45% |
| Neph vs Steve | 20–12 | 62.50% |
| Neph vs Law | 17–14 | 54.84% |
| Neph vs Heihachi | 6–21 | 22.22% |
| Neph vs Jun | 15–11 | 57.69% |
| Neph vs Devil Jin | 14–9 | 60.87% |
| Neph vs Yoshimitsu | 15–6 | 71.43% |
| Neph vs Hwoarang | 15–6 | 71.43% |
| Neph vs Lars | 9–12 | 42.86% |
| Neph vs Paul | 11–9 | 55.00% |
| Neph vs Asuka | 13–5 | 72.22% |
| Neph vs Lili | 12–6 | 66.67% |
| Neph vs Lidia | 11–6 | 64.71% |
| Neph vs Azucena | 12–4 | 75.00% |
| Neph vs Victor | 10–5 | 66.67% |
| Neph vs Xiaoyu | 12–2 | 85.71% |
| Neph vs Leo | 9–5 | 64.29% |
| Neph vs Alisa | 6–8 | 42.86% |
| Neph vs Nina | 9–5 | 64.29% |
| Neph vs Leroy | 7–7 | 50.00% |
| Neph vs Lee | 8–4 | 66.67% |
| Neph vs Claudio | 5–5 | 50.00% |
| Neph vs Raven | 6–3 | 66.67% |
| Neph vs Shaheen | 3–5 | 37.50% |
| Neph vs Feng | 1–6 | 14.29% |
| Neph vs Jack-8 | 4–1 | 80.00% |
| Neph vs Clive | 4–1 | 80.00% |
| Neph vs Zafina | 2–2 | 50.00% |
| Neph vs Eddy | 2–2 | 50.00% |
| Neph vs Kuma | 2–1 | 66.67% |
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.