| Nishi vs King | 18–18 | 50.00% |
| Nishi vs Bryan | 20–15 | 57.14% |
| Nishi vs Dragunov | 16–10 | 61.54% |
| Nishi vs Yoshimitsu | 10–14 | 41.67% |
| Nishi vs Hwoarang | 14–10 | 58.33% |
| Nishi vs Jin | 16–8 | 66.67% |
| Nishi vs Law | 16–7 | 69.57% |
| Nishi vs Reina | 7–14 | 33.33% |
| Nishi vs Paul | 16–3 | 84.21% |
| Nishi vs Alisa | 6–12 | 33.33% |
| Nishi vs Lidia | 12–6 | 66.67% |
| Nishi vs Eddy | 7–9 | 43.75% |
| Nishi vs Devil Jin | 10–3 | 76.92% |
| Nishi vs Lili | 7–6 | 53.85% |
| Nishi vs Kazuya | 6–6 | 50.00% |
| Nishi vs Nina | 2–9 | 18.18% |
| Nishi vs Lee | 8–3 | 72.73% |
| Nishi vs Jun | 2–8 | 20.00% |
| Nishi vs Steve | 6–3 | 66.67% |
| Nishi vs Zafina | 3–6 | 33.33% |
| Nishi vs Xiaoyu | 5–3 | 62.50% |
| Nishi vs Victor | 5–3 | 62.50% |
| Nishi vs Jack-8 | 2–5 | 28.57% |
| Nishi vs Asuka | 4–3 | 57.14% |
| Nishi vs Feng | 6–1 | 85.71% |
| Nishi vs Kuma | 6–1 | 85.71% |
| Nishi vs Azucena | 5–1 | 83.33% |
| Nishi vs Lars | 3–2 | 60.00% |
| Nishi vs Leroy | 4–1 | 80.00% |
| Nishi vs Raven | 3–2 | 60.00% |
| Nishi vs Leo | 0–2 | 0.00% |
| Nishi vs Claudio | 2–0 | 100.00% |
| Nishi vs Shaheen | 0–2 | 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.