| Niko_Niko vs Steve | 4–4 | 50.00% |
| Niko_Niko vs Heihachi | 5–3 | 62.50% |
| Niko_Niko vs King | 4–1 | 80.00% |
| Niko_Niko vs Jin | 3–2 | 60.00% |
| Niko_Niko vs Jun | 1–4 | 20.00% |
| Niko_Niko vs Hwoarang | 1–2 | 33.33% |
| Niko_Niko vs Bryan | 2–1 | 66.67% |
| Niko_Niko vs Jack-8 | 1–2 | 33.33% |
| Niko_Niko vs Dragunov | 2–1 | 66.67% |
| Niko_Niko vs Claudio | 2–1 | 66.67% |
| Niko_Niko vs Zafina | 2–0 | 100.00% |
| Niko_Niko vs Reina | 0–2 | 0.00% |
| Niko_Niko vs Eddy | 2–0 | 100.00% |
| Niko_Niko vs Devil Jin | 1–0 | 100.00% |
| Niko_Niko vs Kuma | 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.