| KayyJayy vs Jin | 4–8 | 33.33% |
| KayyJayy vs Steve | 10–2 | 83.33% |
| KayyJayy vs Eddy | 4–7 | 36.36% |
| KayyJayy vs Law | 7–3 | 70.00% |
| KayyJayy vs Azucena | 4–6 | 40.00% |
| KayyJayy vs King | 4–5 | 44.44% |
| KayyJayy vs Kuma | 4–4 | 50.00% |
| KayyJayy vs Jun | 5–3 | 62.50% |
| KayyJayy vs Reina | 6–2 | 75.00% |
| KayyJayy vs Asuka | 0–7 | 0.00% |
| KayyJayy vs Devil Jin | 4–3 | 57.14% |
| KayyJayy vs Nina | 3–4 | 42.86% |
| KayyJayy vs Victor | 2–5 | 28.57% |
| KayyJayy vs Paul | 3–3 | 50.00% |
| KayyJayy vs Xiaoyu | 2–4 | 33.33% |
| KayyJayy vs Bryan | 1–5 | 16.67% |
| KayyJayy vs Shaheen | 4–2 | 66.67% |
| KayyJayy vs Lee | 1–5 | 16.67% |
| KayyJayy vs Panda | 4–2 | 66.67% |
| KayyJayy vs Kazuya | 4–1 | 80.00% |
| KayyJayy vs Leo | 3–2 | 60.00% |
| KayyJayy vs Leroy | 3–1 | 75.00% |
| KayyJayy vs Raven | 2–2 | 50.00% |
| KayyJayy vs Hwoarang | 3–0 | 100.00% |
| KayyJayy vs Zafina | 1–2 | 33.33% |
| KayyJayy vs Jack-8 | 0–2 | 0.00% |
| KayyJayy vs Lili | 2–0 | 100.00% |
| KayyJayy vs Dragunov | 0–2 | 0.00% |
| KayyJayy vs Lars | 1–1 | 50.00% |
| KayyJayy vs Alisa | 2–0 | 100.00% |
| KayyJayy vs Feng | 1–0 | 100.00% |
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.