| RoiKKou vs Kazuya | 206–152 | 57.54% |
| RoiKKou vs Jin | 201–147 | 57.76% |
| RoiKKou vs Hwoarang | 199–131 | 60.30% |
| RoiKKou vs Law | 194–87 | 69.04% |
| RoiKKou vs Paul | 163–80 | 67.08% |
| RoiKKou vs Bryan | 134–109 | 55.14% |
| RoiKKou vs King | 133–100–1 | 57.08% |
| RoiKKou vs Heihachi | 113–117 | 49.13% |
| RoiKKou vs Yoshimitsu | 120–76 | 61.22% |
| RoiKKou vs Lili | 95–70 | 57.58% |
| RoiKKou vs Devil Jin | 84–70 | 54.55% |
| RoiKKou vs Steve | 63–90 | 41.18% |
| RoiKKou vs Dragunov | 62–72 | 46.27% |
| RoiKKou vs Lee | 55–60 | 47.83% |
| RoiKKou vs Eddy | 56–56 | 50.00% |
| RoiKKou vs Xiaoyu | 61–46 | 57.01% |
| RoiKKou vs Asuka | 60–46 | 56.60% |
| RoiKKou vs Feng | 53–53 | 50.00% |
| RoiKKou vs Alisa | 59–47 | 55.66% |
| RoiKKou vs Lars | 39–65 | 37.50% |
| RoiKKou vs Nina | 53–49 | 51.96% |
| RoiKKou vs Reina | 36–58 | 38.30% |
| RoiKKou vs Jun | 40–47 | 45.98% |
| RoiKKou vs Anna | 37–44 | 45.68% |
| RoiKKou vs Jack-8 | 46–33 | 58.23% |
| RoiKKou vs Raven | 36–41 | 46.75% |
| RoiKKou vs Azucena | 31–37 | 45.59% |
| RoiKKou vs Fahkumram | 21–47 | 30.88% |
| RoiKKou vs Claudio | 32–35 | 47.76% |
| RoiKKou vs Lidia | 27–40 | 40.30% |
| RoiKKou vs Leroy | 28–37 | 43.08% |
| RoiKKou vs Armor King | 25–39 | 39.06% |
| RoiKKou vs Kuma | 34–28 | 54.84% |
| RoiKKou vs Clive | 24–36 | 40.00% |
| RoiKKou vs Leo | 25–34 | 42.37% |
| RoiKKou vs Zafina | 25–32 | 43.86% |
| RoiKKou vs Shaheen | 21–20 | 51.22% |
| RoiKKou vs Victor | 13–24 | 35.14% |
| RoiKKou vs Panda | 18–3 | 85.71% |
| RoiKKou vs Miary Zo | 5–9 | 35.71% |
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.