| Nidhogg vs Lili | 5–4 | 55.56% |
| Nidhogg vs Heihachi | 3–6 | 33.33% |
| Nidhogg vs King | 4–2 | 66.67% |
| Nidhogg vs Xiaoyu | 6–0 | 100.00% |
| Nidhogg vs Law | 1–4 | 20.00% |
| Nidhogg vs Hwoarang | 2–3 | 40.00% |
| Nidhogg vs Lars | 1–4 | 20.00% |
| Nidhogg vs Clive | 1–4 | 20.00% |
| Nidhogg vs Dragunov | 1–3 | 25.00% |
| Nidhogg vs Eddy | 2–2 | 50.00% |
| Nidhogg vs Kazuya | 0–3 | 0.00% |
| Nidhogg vs Leroy | 3–0 | 100.00% |
| Nidhogg vs Anna | 2–1 | 66.67% |
| Nidhogg vs Bryan | 1–1 | 50.00% |
| Nidhogg vs Reina | 2–0 | 100.00% |
| Nidhogg vs Azucena | 0–2 | 0.00% |
| Nidhogg vs Victor | 0–2 | 0.00% |
| Nidhogg vs Lidia | 0–2 | 0.00% |
| Nidhogg vs Jack-8 | 1–0 | 100.00% |
| Nidhogg vs Nina | 1–0 | 100.00% |
| Nidhogg 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.