| Nijahichiban vs Armor King | 52–31 | 62.65% |
| Nijahichiban vs Steve | 44–34 | 56.41% |
| Nijahichiban vs King | 39–35 | 52.70% |
| Nijahichiban vs Jin | 37–29 | 56.06% |
| Nijahichiban vs Bryan | 30–19 | 61.22% |
| Nijahichiban vs Law | 25–23 | 52.08% |
| Nijahichiban vs Paul | 27–15 | 64.29% |
| Nijahichiban vs Dragunov | 24–16 | 60.00% |
| Nijahichiban vs Hwoarang | 23–16 | 58.97% |
| Nijahichiban vs Miary Zo | 13–25 | 34.21% |
| Nijahichiban vs Eddy | 20–16 | 55.56% |
| Nijahichiban vs Kazuya | 20–15 | 57.14% |
| Nijahichiban vs Heihachi | 13–22 | 37.14% |
| Nijahichiban vs Lili | 13–14 | 48.15% |
| Nijahichiban vs Lee | 8–19 | 29.63% |
| Nijahichiban vs Lars | 9–17 | 34.62% |
| Nijahichiban vs Zafina | 15–9 | 62.50% |
| Nijahichiban vs Fahkumram | 11–12 | 47.83% |
| Nijahichiban vs Reina | 9–13 | 40.91% |
| Nijahichiban vs Jun | 12–9 | 57.14% |
| Nijahichiban vs Raven | 10–11 | 47.62% |
| Nijahichiban vs Azucena | 5–15 | 25.00% |
| Nijahichiban vs Yoshimitsu | 7–12 | 36.84% |
| Nijahichiban vs Leo | 9–8 | 52.94% |
| Nijahichiban vs Nina | 9–8 | 52.94% |
| Nijahichiban vs Anna | 11–6 | 64.71% |
| Nijahichiban vs Clive | 9–7 | 56.25% |
| Nijahichiban vs Xiaoyu | 6–9 | 40.00% |
| Nijahichiban vs Feng | 6–9 | 40.00% |
| Nijahichiban vs Victor | 7–8 | 46.67% |
| Nijahichiban vs Alisa | 8–6 | 57.14% |
| Nijahichiban vs Shaheen | 8–6 | 57.14% |
| Nijahichiban vs Jack-8 | 8–4 | 66.67% |
| Nijahichiban vs Leroy | 6–6 | 50.00% |
| Nijahichiban vs Lidia | 2–9 | 18.18% |
| Nijahichiban vs Asuka | 3–7 | 30.00% |
| Nijahichiban vs Devil Jin | 3–3 | 50.00% |
| Nijahichiban vs Claudio | 1–5 | 16.67% |
| Nijahichiban vs Kuma | 3–2 | 60.00% |
| Nijahichiban vs Panda | 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.