| Nikaku vs King | 11–6 | 64.71% |
| Nikaku vs Reina | 7–8 | 46.67% |
| Nikaku vs Hwoarang | 5–8 | 38.46% |
| Nikaku vs Jin | 7–6 | 53.85% |
| Nikaku vs Kazuya | 7–4 | 63.64% |
| Nikaku vs Devil Jin | 4–5 | 44.44% |
| Nikaku vs Law | 4–4 | 50.00% |
| Nikaku vs Victor | 6–2 | 75.00% |
| Nikaku vs Steve | 4–3 | 57.14% |
| Nikaku vs Yoshimitsu | 0–6 | 0.00% |
| Nikaku vs Dragunov | 2–4 | 33.33% |
| Nikaku vs Lars | 0–6 | 0.00% |
| Nikaku vs Jack-8 | 1–4 | 20.00% |
| Nikaku vs Raven | 4–1 | 80.00% |
| Nikaku vs Bryan | 4–0 | 100.00% |
| Nikaku vs Alisa | 3–1 | 75.00% |
| Nikaku vs Nina | 3–1 | 75.00% |
| Nikaku vs Azucena | 3–1 | 75.00% |
| Nikaku vs Claudio | 2–1 | 66.67% |
| Nikaku vs Eddy | 2–1 | 66.67% |
| Nikaku vs Paul | 2–0 | 100.00% |
| Nikaku vs Xiaoyu | 0–2 | 0.00% |
| Nikaku vs Asuka | 2–0 | 100.00% |
| Nikaku vs Lee | 2–0 | 100.00% |
| Nikaku vs Kuma | 0–2 | 0.00% |
| Nikaku vs Lili | 0–1 | 0.00% |
| Nikaku vs Jun | 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.