| Nikachu vs Reina | 11–4 | 73.33% |
| Nikachu vs Hwoarang | 3–6 | 33.33% |
| Nikachu vs Jack-8 | 4–5 | 44.44% |
| Nikachu vs Jin | 0–8 | 0.00% |
| Nikachu vs King | 1–6 | 14.29% |
| Nikachu vs Lili | 3–4 | 42.86% |
| Nikachu vs Kazuya | 3–3 | 50.00% |
| Nikachu vs Xiaoyu | 3–2 | 60.00% |
| Nikachu vs Steve | 2–3 | 40.00% |
| Nikachu vs Devil Jin | 1–3 | 25.00% |
| Nikachu vs Azucena | 0–4 | 0.00% |
| Nikachu vs Law | 0–3 | 0.00% |
| Nikachu vs Raven | 1–2 | 33.33% |
| Nikachu vs Yoshimitsu | 0–2 | 0.00% |
| Nikachu vs Asuka | 0–2 | 0.00% |
| Nikachu vs Dragunov | 0–2 | 0.00% |
| Nikachu vs Lars | 0–2 | 0.00% |
| Nikachu vs Claudio | 2–0 | 100.00% |
| Nikachu vs Nina | 0–2 | 0.00% |
| Nikachu vs Kuma | 0–2 | 0.00% |
| Nikachu vs Alisa | 1–0 | 100.00% |
| Nikachu vs Lee | 0–1 | 0.00% |
| Nikachu vs Zafina | 1–0 | 100.00% |
| Nikachu vs Jun | 0–1 | 0.00% |
| Nikachu vs Eddy | 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.