| Nikolai vs Reina | 70–48 | 59.32% |
| Nikolai vs Jin | 57–51 | 52.78% |
| Nikolai vs King | 52–49 | 51.49% |
| Nikolai vs Kazuya | 43–48 | 47.25% |
| Nikolai vs Hwoarang | 25–51 | 32.89% |
| Nikolai vs Lili | 22–37 | 37.29% |
| Nikolai vs Dragunov | 18–37 | 32.73% |
| Nikolai vs Steve | 29–25 | 53.70% |
| Nikolai vs Bryan | 18–34 | 34.62% |
| Nikolai vs Jun | 32–17 | 65.31% |
| Nikolai vs Asuka | 18–23 | 43.90% |
| Nikolai vs Leo | 20–21 | 48.78% |
| Nikolai vs Yoshimitsu | 17–22 | 43.59% |
| Nikolai vs Lidia | 18–18 | 50.00% |
| Nikolai vs Lee | 16–19 | 45.71% |
| Nikolai vs Azucena | 17–17 | 50.00% |
| Nikolai vs Eddy | 13–21 | 38.24% |
| Nikolai vs Nina | 14–17 | 45.16% |
| Nikolai vs Devil Jin | 13–17 | 43.33% |
| Nikolai vs Lars | 9–21 | 30.00% |
| Nikolai vs Victor | 17–11 | 60.71% |
| Nikolai vs Law | 8–19 | 29.63% |
| Nikolai vs Xiaoyu | 11–11 | 50.00% |
| Nikolai vs Jack-8 | 6–15 | 28.57% |
| Nikolai vs Paul | 6–14 | 30.00% |
| Nikolai vs Feng | 7–13 | 35.00% |
| Nikolai vs Claudio | 11–6 | 64.71% |
| Nikolai vs Alisa | 9–6 | 60.00% |
| Nikolai vs Raven | 6–8 | 42.86% |
| Nikolai vs Zafina | 7–6 | 53.85% |
| Nikolai vs Leroy | 8–5 | 61.54% |
| Nikolai vs Kuma | 3–5 | 37.50% |
| Nikolai vs Shaheen | 4–3 | 57.14% |
| Nikolai vs Panda | 2–1 | 66.67% |
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.