| Kouyoukii vs Hwoarang | 103–108 | 48.82% |
| Kouyoukii vs Jin | 104–69 | 60.12% |
| Kouyoukii vs Kazuya | 83–87 | 48.82% |
| Kouyoukii vs Armor King | 83–83 | 50.00% |
| Kouyoukii vs King | 63–69 | 47.73% |
| Kouyoukii vs Bryan | 62–69 | 47.33% |
| Kouyoukii vs Law | 61–64 | 48.80% |
| Kouyoukii vs Yoshimitsu | 51–53 | 49.04% |
| Kouyoukii vs Steve | 56–48 | 53.85% |
| Kouyoukii vs Lili | 59–39 | 60.20% |
| Kouyoukii vs Heihachi | 54–39 | 58.06% |
| Kouyoukii vs Dragunov | 50–36 | 58.14% |
| Kouyoukii vs Lee | 45–40 | 52.94% |
| Kouyoukii vs Paul | 31–50–1 | 38.27% |
| Kouyoukii vs Devil Jin | 38–39 | 49.35% |
| Kouyoukii vs Lars | 46–28 | 62.16% |
| Kouyoukii vs Victor | 36–37 | 49.32% |
| Kouyoukii vs Xiaoyu | 39–30 | 56.52% |
| Kouyoukii vs Eddy | 36–29 | 55.38% |
| Kouyoukii vs Asuka | 37–26 | 58.73% |
| Kouyoukii vs Fahkumram | 23–32 | 41.82% |
| Kouyoukii vs Nina | 16–37 | 30.19% |
| Kouyoukii vs Feng | 21–31 | 40.38% |
| Kouyoukii vs Leroy | 27–24 | 52.94% |
| Kouyoukii vs Reina | 34–17 | 66.67% |
| Kouyoukii vs Jun | 29–20 | 59.18% |
| Kouyoukii vs Anna | 24–25 | 48.98% |
| Kouyoukii vs Alisa | 20–28 | 41.67% |
| Kouyoukii vs Lidia | 22–24 | 47.83% |
| Kouyoukii vs Claudio | 22–21 | 51.16% |
| Kouyoukii vs Raven | 18–22 | 45.00% |
| Kouyoukii vs Jack-8 | 12–26 | 31.58% |
| Kouyoukii vs Leo | 23–11 | 67.65% |
| Kouyoukii vs Miary Zo | 14–18 | 43.75% |
| Kouyoukii vs Kuma | 9–20 | 31.03% |
| Kouyoukii vs Azucena | 15–12 | 55.56% |
| Kouyoukii vs Clive | 14–10 | 58.33% |
| Kouyoukii vs Zafina | 6–9 | 40.00% |
| Kouyoukii vs Shaheen | 7–6 | 53.85% |
| Kouyoukii vs Panda | 3–4 | 42.86% |
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.