| Nishikawa vs Kazuya | 31–46 | 40.26% |
| Nishikawa vs King | 40–35 | 53.33% |
| Nishikawa vs Steve | 51–20 | 71.83% |
| Nishikawa vs Jin | 40–29 | 57.97% |
| Nishikawa vs Clive | 33–28 | 54.10% |
| Nishikawa vs Hwoarang | 22–34 | 39.29% |
| Nishikawa vs Heihachi | 26–30 | 46.43% |
| Nishikawa vs Law | 27–27 | 50.00% |
| Nishikawa vs Bryan | 26–25 | 50.98% |
| Nishikawa vs Reina | 24–26 | 48.00% |
| Nishikawa vs Dragunov | 19–24 | 44.19% |
| Nishikawa vs Lili | 15–27 | 35.71% |
| Nishikawa vs Asuka | 26–11 | 70.27% |
| Nishikawa vs Yoshimitsu | 16–17 | 48.48% |
| Nishikawa vs Eddy | 20–11 | 64.52% |
| Nishikawa vs Paul | 14–14 | 50.00% |
| Nishikawa vs Victor | 19–8 | 70.37% |
| Nishikawa vs Jun | 9–16 | 36.00% |
| Nishikawa vs Fahkumram | 11–13 | 45.83% |
| Nishikawa vs Nina | 13–10 | 56.52% |
| Nishikawa vs Alisa | 8–12 | 40.00% |
| Nishikawa vs Lee | 9–10 | 47.37% |
| Nishikawa vs Feng | 10–8 | 55.56% |
| Nishikawa vs Azucena | 6–12 | 33.33% |
| Nishikawa vs Devil Jin | 6–11 | 35.29% |
| Nishikawa vs Leroy | 8–9 | 47.06% |
| Nishikawa vs Lidia | 9–7 | 56.25% |
| Nishikawa vs Armor King | 7–9 | 43.75% |
| Nishikawa vs Lars | 8–6 | 57.14% |
| Nishikawa vs Anna | 8–6 | 57.14% |
| Nishikawa vs Xiaoyu | 5–8 | 38.46% |
| Nishikawa vs Jack-8 | 7–6 | 53.85% |
| Nishikawa vs Leo | 7–6 | 53.85% |
| Nishikawa vs Claudio | 5–7 | 41.67% |
| Nishikawa vs Raven | 4–8 | 33.33% |
| Nishikawa vs Kuma | 3–5 | 37.50% |
| Nishikawa vs Shaheen | 2–3 | 40.00% |
| Nishikawa vs Panda | 3–2 | 60.00% |
| Nishikawa vs Zafina | 0–4 | 0.00% |
| Nishikawa vs Miary Zo | 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.