| Nephirim vs Reina | 37–33 | 52.86% |
| Nephirim vs King | 19–21 | 47.50% |
| Nephirim vs Bryan | 21–19 | 52.50% |
| Nephirim vs Yoshimitsu | 18–21 | 46.15% |
| Nephirim vs Leroy | 15–18 | 45.45% |
| Nephirim vs Lili | 16–16 | 50.00% |
| Nephirim vs Jin | 9–22 | 29.03% |
| Nephirim vs Xiaoyu | 15–14 | 51.72% |
| Nephirim vs Asuka | 11–17 | 39.29% |
| Nephirim vs Dragunov | 12–15 | 44.44% |
| Nephirim vs Jun | 12–15 | 44.44% |
| Nephirim vs Victor | 11–16 | 40.74% |
| Nephirim vs Steve | 11–14 | 44.00% |
| Nephirim vs Paul | 10–14 | 41.67% |
| Nephirim vs Hwoarang | 12–12 | 50.00% |
| Nephirim vs Eddy | 6–17 | 26.09% |
| Nephirim vs Kazuya | 11–11 | 50.00% |
| Nephirim vs Nina | 8–12 | 40.00% |
| Nephirim vs Azucena | 14–6 | 70.00% |
| Nephirim vs Devil Jin | 5–9 | 35.71% |
| Nephirim vs Law | 5–7 | 41.67% |
| Nephirim vs Jack-8 | 5–6 | 45.45% |
| Nephirim vs Feng | 4–7 | 36.36% |
| Nephirim vs Lars | 3–7 | 30.00% |
| Nephirim vs Lee | 4–6 | 40.00% |
| Nephirim vs Alisa | 1–8 | 11.11% |
| Nephirim vs Claudio | 3–6 | 33.33% |
| Nephirim vs Zafina | 1–6 | 14.29% |
| Nephirim vs Raven | 4–2 | 66.67% |
| Nephirim vs Leo | 2–3 | 40.00% |
| Nephirim vs Shaheen | 0–2 | 0.00% |
| Nephirim vs Heihachi | 0–2 | 0.00% |
| Nephirim vs Clive | 0–2 | 0.00% |
| Nephirim vs Panda | 0–1 | 0.00% |
| Nephirim vs Fahkumram | 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.