| niflheim vs Steve | 12–6 | 66.67% |
| niflheim vs Kazuya | 6–6 | 50.00% |
| niflheim vs Lars | 8–0 | 100.00% |
| niflheim vs Yoshimitsu | 5–2 | 71.43% |
| niflheim vs Law | 6–0 | 100.00% |
| niflheim vs Bryan | 4–2 | 66.67% |
| niflheim vs King | 3–2 | 60.00% |
| niflheim vs Devil Jin | 3–2 | 60.00% |
| niflheim vs Zafina | 4–1 | 80.00% |
| niflheim vs Victor | 4–0 | 100.00% |
| niflheim vs Heihachi | 4–0 | 100.00% |
| niflheim vs Reina | 3–1 | 75.00% |
| niflheim vs Leo | 1–2 | 33.33% |
| niflheim vs Jun | 1–2 | 33.33% |
| niflheim vs Lidia | 1–2 | 33.33% |
| niflheim vs Jin | 2–0 | 100.00% |
| niflheim vs Feng | 2–0 | 100.00% |
| niflheim vs Dragunov | 2–0 | 100.00% |
| niflheim vs Nina | 2–0 | 100.00% |
| niflheim vs Xiaoyu | 1–1 | 50.00% |
| niflheim vs Asuka | 0–2 | 0.00% |
| niflheim vs Lili | 1–0 | 100.00% |
| niflheim vs Alisa | 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.