| Kayy vs Kazuya | 28–24 | 53.85% |
| Kayy vs Jin | 31–20 | 60.78% |
| Kayy vs Heihachi | 26–23 | 53.06% |
| Kayy vs Hwoarang | 28–19 | 59.57% |
| Kayy vs Bryan | 30–17 | 63.83% |
| Kayy vs Steve | 17–26 | 39.53% |
| Kayy vs King | 14–18 | 43.75% |
| Kayy vs Yoshimitsu | 16–10 | 61.54% |
| Kayy vs Devil Jin | 12–14 | 46.15% |
| Kayy vs Dragunov | 13–13 | 50.00% |
| Kayy vs Xiaoyu | 10–15 | 40.00% |
| Kayy vs Lee | 14–10 | 58.33% |
| Kayy vs Reina | 15–8 | 65.22% |
| Kayy vs Feng | 13–6 | 68.42% |
| Kayy vs Lili | 11–8 | 57.89% |
| Kayy vs Law | 6–12 | 33.33% |
| Kayy vs Alisa | 3–14 | 17.65% |
| Kayy vs Nina | 6–10 | 37.50% |
| Kayy vs Jun | 7–7 | 50.00% |
| Kayy vs Raven | 6–5 | 54.55% |
| Kayy vs Lars | 6–4 | 60.00% |
| Kayy vs Eddy | 5–5 | 50.00% |
| Kayy vs Leo | 5–4 | 55.56% |
| Kayy vs Kuma | 4–5 | 44.44% |
| Kayy vs Paul | 7–1 | 87.50% |
| Kayy vs Jack-8 | 6–2 | 75.00% |
| Kayy vs Victor | 5–3 | 62.50% |
| Kayy vs Lidia | 4–4 | 50.00% |
| Kayy vs Leroy | 5–2 | 71.43% |
| Kayy vs Asuka | 3–3 | 50.00% |
| Kayy vs Shaheen | 2–3 | 40.00% |
| Kayy vs Zafina | 0–4 | 0.00% |
| Kayy vs Azucena | 4–0 | 100.00% |
| Kayy vs Clive | 2–2 | 50.00% |
| Kayy vs Claudio | 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.