| Niku vs Kazuya | 50–96 | 34.25% |
| Niku vs Reina | 55–82 | 40.15% |
| Niku vs Jin | 44–76 | 36.67% |
| Niku vs Dragunov | 37–74 | 33.33% |
| Niku vs King | 31–63 | 32.98% |
| Niku vs Steve | 33–56 | 37.08% |
| Niku vs Jun | 22–63 | 25.88% |
| Niku vs Lili | 29–51 | 36.25% |
| Niku vs Lidia | 27–53 | 33.75% |
| Niku vs Hwoarang | 26–48 | 35.14% |
| Niku vs Victor | 15–44 | 25.42% |
| Niku vs Yoshimitsu | 25–31 | 44.64% |
| Niku vs Bryan | 19–35 | 35.19% |
| Niku vs Law | 19–33 | 36.54% |
| Niku vs Heihachi | 15–36 | 29.41% |
| Niku vs Asuka | 15–31 | 32.61% |
| Niku vs Xiaoyu | 25–19 | 56.82% |
| Niku vs Leroy | 18–20 | 47.37% |
| Niku vs Azucena | 16–20 | 44.44% |
| Niku vs Devil Jin | 9–26 | 25.71% |
| Niku vs Alisa | 12–19 | 38.71% |
| Niku vs Claudio | 7–22 | 24.14% |
| Niku vs Feng | 7–21 | 25.00% |
| Niku vs Lars | 9–18 | 33.33% |
| Niku vs Eddy | 13–14 | 48.15% |
| Niku vs Paul | 12–14 | 46.15% |
| Niku vs Shaheen | 10–16 | 38.46% |
| Niku vs Lee | 11–14 | 44.00% |
| Niku vs Nina | 11–12 | 47.83% |
| Niku vs Kuma | 3–13 | 18.75% |
| Niku vs Leo | 9–6 | 60.00% |
| Niku vs Raven | 5–5 | 50.00% |
| Niku vs Jack-8 | 3–4 | 42.86% |
| Niku vs Panda | 2–4 | 33.33% |
| Niku vs Zafina | 4–0 | 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.