| Nikachu vs Eddy | 10–8 | 55.56% |
| Nikachu vs Lidia | 14–2 | 87.50% |
| Nikachu vs Yoshimitsu | 8–3 | 72.73% |
| Nikachu vs King | 3–7 | 30.00% |
| Nikachu vs Jin | 6–4 | 60.00% |
| Nikachu vs Law | 6–3 | 66.67% |
| Nikachu vs Jun | 7–2 | 77.78% |
| Nikachu vs Paul | 5–3 | 62.50% |
| Nikachu vs Reina | 8–0 | 100.00% |
| Nikachu vs Kazuya | 3–4 | 42.86% |
| Nikachu vs Leo | 5–1 | 83.33% |
| Nikachu vs Azucena | 2–4 | 33.33% |
| Nikachu vs Feng | 3–2 | 60.00% |
| Nikachu vs Dragunov | 5–0 | 100.00% |
| Nikachu vs Victor | 3–2 | 60.00% |
| Nikachu vs Steve | 3–1 | 75.00% |
| Nikachu vs Lee | 4–0 | 100.00% |
| Nikachu vs Xiaoyu | 1–2 | 33.33% |
| Nikachu vs Lars | 1–2 | 33.33% |
| Nikachu vs Kuma | 1–2 | 33.33% |
| Nikachu vs Heihachi | 0–3 | 0.00% |
| Nikachu vs Hwoarang | 0–2 | 0.00% |
| Nikachu vs Jack-8 | 0–2 | 0.00% |
| Nikachu vs Asuka | 0–2 | 0.00% |
| Nikachu vs Lili | 0–2 | 0.00% |
| Nikachu vs Clive | 0–2 | 0.00% |
| Nikachu vs Devil Jin | 1–0 | 100.00% |
| Nikachu vs Leroy | 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.