| Nishiko vs Jin | 21–20 | 51.22% |
| Nishiko vs King | 20–8 | 71.43% |
| Nishiko vs Bryan | 11–9 | 55.00% |
| Nishiko vs Dragunov | 11–9 | 55.00% |
| Nishiko vs Law | 8–11 | 42.11% |
| Nishiko vs Steve | 9–9 | 50.00% |
| Nishiko vs Lili | 8–9 | 47.06% |
| Nishiko vs Lars | 8–7 | 53.33% |
| Nishiko vs Clive | 8–7 | 53.33% |
| Nishiko vs Kazuya | 6–8 | 42.86% |
| Nishiko vs Xiaoyu | 4–9 | 30.77% |
| Nishiko vs Lee | 7–5 | 58.33% |
| Nishiko vs Eddy | 9–3 | 75.00% |
| Nishiko vs Armor King | 6–6 | 50.00% |
| Nishiko vs Miary Zo | 3–8 | 27.27% |
| Nishiko vs Yoshimitsu | 6–4 | 60.00% |
| Nishiko vs Reina | 4–6 | 40.00% |
| Nishiko vs Lidia | 5–5 | 50.00% |
| Nishiko vs Devil Jin | 4–5 | 44.44% |
| Nishiko vs Claudio | 6–3 | 66.67% |
| Nishiko vs Heihachi | 0–9 | 0.00% |
| Nishiko vs Fahkumram | 5–4 | 55.56% |
| Nishiko vs Hwoarang | 5–3 | 62.50% |
| Nishiko vs Jack-8 | 4–4 | 50.00% |
| Nishiko vs Azucena | 3–5 | 37.50% |
| Nishiko vs Anna | 6–2 | 75.00% |
| Nishiko vs Leo | 3–4 | 42.86% |
| Nishiko vs Paul | 3–3 | 50.00% |
| Nishiko vs Victor | 4–2 | 66.67% |
| Nishiko vs Nina | 3–2 | 60.00% |
| Nishiko vs Alisa | 1–3 | 25.00% |
| Nishiko vs Raven | 2–2 | 50.00% |
| Nishiko vs Feng | 2–1 | 66.67% |
| Nishiko vs Kuma | 2–1 | 66.67% |
| Nishiko vs Asuka | 2–0 | 100.00% |
| Nishiko vs Shaheen | 2–0 | 100.00% |
| Nishiko vs Jun | 0–2 | 0.00% |
| Nishiko vs Leroy | 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.