| Niko vs Armor King | 11–13 | 45.83% |
| Niko vs King | 6–9 | 40.00% |
| Niko vs Hwoarang | 3–9 | 25.00% |
| Niko vs Steve | 5–7 | 41.67% |
| Niko vs Yoshimitsu | 9–2 | 81.82% |
| Niko vs Law | 4–6 | 40.00% |
| Niko vs Jin | 4–6 | 40.00% |
| Niko vs Lili | 5–4 | 55.56% |
| Niko vs Dragunov | 4–5 | 44.44% |
| Niko vs Leroy | 2–7 | 22.22% |
| Niko vs Jun | 5–4 | 55.56% |
| Niko vs Bryan | 3–5 | 37.50% |
| Niko vs Reina | 2–5 | 28.57% |
| Niko vs Heihachi | 1–5 | 16.67% |
| Niko vs Anna | 2–4 | 33.33% |
| Niko vs Kazuya | 2–3 | 40.00% |
| Niko vs Azucena | 2–3 | 40.00% |
| Niko vs Lidia | 4–1 | 80.00% |
| Niko vs Claudio | 0–4 | 0.00% |
| Niko vs Devil Jin | 1–2 | 33.33% |
| Niko vs Nina | 0–3 | 0.00% |
| Niko vs Paul | 1–1 | 50.00% |
| Niko vs Asuka | 0–2 | 0.00% |
| Niko vs Lee | 1–1 | 50.00% |
| Niko vs Kuma | 0–2 | 0.00% |
| Niko vs Raven | 0–2 | 0.00% |
| Niko vs Fahkumram | 0–2 | 0.00% |
| Niko vs Xiaoyu | 0–1 | 0.00% |
| Niko vs Feng | 1–0 | 100.00% |
| Niko vs Lars | 0–1 | 0.00% |
| Niko vs Alisa | 1–0 | 100.00% |
| Niko vs Eddy | 1–0 | 100.00% |
| Niko vs Clive | 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.