| Nephistis vs King | 14–33 | 29.79% |
| Nephistis vs Steve | 16–29 | 35.56% |
| Nephistis vs Eddy | 7–23 | 23.33% |
| Nephistis vs Kazuya | 9–18 | 33.33% |
| Nephistis vs Reina | 10–16 | 38.46% |
| Nephistis vs Victor | 5–21 | 19.23% |
| Nephistis vs Hwoarang | 9–12 | 42.86% |
| Nephistis vs Jin | 8–13 | 38.10% |
| Nephistis vs Asuka | 6–13 | 31.58% |
| Nephistis vs Law | 4–14 | 22.22% |
| Nephistis vs Lars | 4–14 | 22.22% |
| Nephistis vs Lili | 4–13 | 23.53% |
| Nephistis vs Yoshimitsu | 5–11 | 31.25% |
| Nephistis vs Bryan | 5–8 | 38.46% |
| Nephistis vs Jun | 4–9 | 30.77% |
| Nephistis vs Azucena | 5–8 | 38.46% |
| Nephistis vs Jack-8 | 3–9 | 25.00% |
| Nephistis vs Dragunov | 0–11 | 0.00% |
| Nephistis vs Claudio | 7–4 | 63.64% |
| Nephistis vs Xiaoyu | 3–6 | 33.33% |
| Nephistis vs Leo | 2–7 | 22.22% |
| Nephistis vs Shaheen | 7–2 | 77.78% |
| Nephistis vs Devil Jin | 0–8 | 0.00% |
| Nephistis vs Kuma | 2–5 | 28.57% |
| Nephistis vs Raven | 2–5 | 28.57% |
| Nephistis vs Nina | 2–4 | 33.33% |
| Nephistis vs Leroy | 3–3 | 50.00% |
| Nephistis vs Lidia | 2–4 | 33.33% |
| Nephistis vs Alisa | 3–2 | 60.00% |
| Nephistis vs Lee | 1–4 | 20.00% |
| Nephistis vs Feng | 2–2 | 50.00% |
| Nephistis vs Paul | 2–1 | 66.67% |
| Nephistis vs Heihachi | 2–0 | 100.00% |
| Nephistis vs Zafina | 0–1 | 0.00% |
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.