| Nikki vs Reina | 100–113 | 46.95% |
| Nikki vs Paul | 82–125 | 39.61% |
| Nikki vs Kazuya | 100–103 | 49.26% |
| Nikki vs Dragunov | 78–116 | 40.21% |
| Nikki vs Bryan | 71–98 | 42.01% |
| Nikki vs King | 70–96 | 42.17% |
| Nikki vs Jin | 43–85 | 33.59% |
| Nikki vs Steve | 53–63 | 45.69% |
| Nikki vs Lili | 47–69 | 40.52% |
| Nikki vs Hwoarang | 43–72 | 37.39% |
| Nikki vs Asuka | 36–66 | 35.29% |
| Nikki vs Clive | 39–63 | 38.24% |
| Nikki vs Law | 33–60 | 35.48% |
| Nikki vs Feng | 38–55 | 40.86% |
| Nikki vs Heihachi | 31–61 | 33.70% |
| Nikki vs Jun | 35–53 | 39.77% |
| Nikki vs Victor | 37–49 | 43.02% |
| Nikki vs Nina | 33–41 | 44.59% |
| Nikki vs Xiaoyu | 27–37 | 42.19% |
| Nikki vs Yoshimitsu | 24–38 | 38.71% |
| Nikki vs Lidia | 21–41 | 33.87% |
| Nikki vs Fahkumram | 25–37 | 40.32% |
| Nikki vs Armor King | 27–34 | 44.26% |
| Nikki vs Claudio | 18–39 | 31.58% |
| Nikki vs Lee | 26–24 | 52.00% |
| Nikki vs Eddy | 24–26 | 48.00% |
| Nikki vs Leo | 23–25 | 47.92% |
| Nikki vs Alisa | 23–25 | 47.92% |
| Nikki vs Devil Jin | 19–28 | 40.43% |
| Nikki vs Azucena | 21–26 | 44.68% |
| Nikki vs Lars | 11–35 | 23.91% |
| Nikki vs Miary Zo | 15–28–1 | 34.88% |
| Nikki vs Kuma | 13–29 | 30.95% |
| Nikki vs Shaheen | 12–23 | 34.29% |
| Nikki vs Leroy | 12–22 | 35.29% |
| Nikki vs Raven | 9–25 | 26.47% |
| Nikki vs Jack-8 | 9–23 | 28.12% |
| Nikki vs Panda | 8–21 | 27.59% |
| Nikki vs Zafina | 11–17 | 39.29% |
| Nikki vs Anna | 9–13 | 40.91% |
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.