| Nikka vs Heihachi | 18–16 | 52.94% |
| Nikka vs King | 7–14 | 33.33% |
| Nikka vs Jin | 14–5 | 73.68% |
| Nikka vs Steve | 13–5 | 72.22% |
| Nikka vs Hwoarang | 10–6 | 62.50% |
| Nikka vs Dragunov | 9–5 | 64.29% |
| Nikka vs Kazuya | 6–5 | 54.55% |
| Nikka vs Lili | 6–5 | 54.55% |
| Nikka vs Jun | 9–2 | 81.82% |
| Nikka vs Victor | 5–6 | 45.45% |
| Nikka vs Law | 6–4 | 60.00% |
| Nikka vs Bryan | 6–4 | 60.00% |
| Nikka vs Reina | 6–4 | 60.00% |
| Nikka vs Eddy | 2–6 | 25.00% |
| Nikka vs Asuka | 1–6 | 14.29% |
| Nikka vs Alisa | 6–1 | 85.71% |
| Nikka vs Lee | 6–1 | 85.71% |
| Nikka vs Azucena | 4–3 | 57.14% |
| Nikka vs Devil Jin | 2–4 | 33.33% |
| Nikka vs Feng | 3–3 | 50.00% |
| Nikka vs Claudio | 2–4 | 33.33% |
| Nikka vs Nina | 5–1 | 83.33% |
| Nikka vs Leo | 2–3 | 40.00% |
| Nikka vs Leroy | 2–3 | 40.00% |
| Nikka vs Yoshimitsu | 4–0 | 100.00% |
| Nikka vs Xiaoyu | 4–0 | 100.00% |
| Nikka vs Jack-8 | 2–0 | 100.00% |
| Nikka vs Lars | 0–2 | 0.00% |
| Nikka vs Raven | 2–0 | 100.00% |
| Nikka vs Paul | 0–1 | 0.00% |
| Nikka vs Shaheen | 1–0 | 100.00% |
| Nikka vs Lidia | 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.