| Niko vs King | 30–39 | 43.48% |
| Niko vs Kazuya | 26–43 | 37.68% |
| Niko vs Heihachi | 29–36 | 44.62% |
| Niko vs Jin | 27–33 | 45.00% |
| Niko vs Bryan | 24–24 | 50.00% |
| Niko vs Law | 26–19 | 57.78% |
| Niko vs Steve | 11–33 | 25.00% |
| Niko vs Reina | 21–20 | 51.22% |
| Niko vs Hwoarang | 22–16 | 57.89% |
| Niko vs Paul | 18–15 | 54.55% |
| Niko vs Devil Jin | 15–13 | 53.57% |
| Niko vs Dragunov | 12–16 | 42.86% |
| Niko vs Jun | 15–13 | 53.57% |
| Niko vs Yoshimitsu | 12–15 | 44.44% |
| Niko vs Eddy | 8–18 | 30.77% |
| Niko vs Anna | 16–9 | 64.00% |
| Niko vs Lili | 13–10 | 56.52% |
| Niko vs Xiaoyu | 6–15 | 28.57% |
| Niko vs Azucena | 13–4 | 76.47% |
| Niko vs Nina | 5–11 | 31.25% |
| Niko vs Lee | 7–6 | 53.85% |
| Niko vs Raven | 10–3 | 76.92% |
| Niko vs Leroy | 7–5 | 58.33% |
| Niko vs Victor | 8–4 | 66.67% |
| Niko vs Asuka | 2–9 | 18.18% |
| Niko vs Lidia | 6–5 | 54.55% |
| Niko vs Feng | 4–6 | 40.00% |
| Niko vs Leo | 4–5 | 44.44% |
| Niko vs Jack-8 | 5–3 | 62.50% |
| Niko vs Alisa | 3–5 | 37.50% |
| Niko vs Claudio | 2–6 | 25.00% |
| Niko vs Clive | 3–2 | 60.00% |
| Niko vs Lars | 4–0 | 100.00% |
| Niko vs Kuma | 3–0 | 100.00% |
| Niko vs Shaheen | 2–0 | 100.00% |
| Niko vs Zafina | 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.