| KingKayJ vs King | 44–70 | 38.60% |
| KingKayJ vs Eddy | 36–59 | 37.89% |
| KingKayJ vs Hwoarang | 44–43 | 50.57% |
| KingKayJ vs Jin | 29–55 | 34.52% |
| KingKayJ vs Reina | 41–43 | 48.81% |
| KingKayJ vs Kazuya | 36–45 | 44.44% |
| KingKayJ vs Jun | 33–30 | 52.38% |
| KingKayJ vs Leo | 31–28 | 52.54% |
| KingKayJ vs Azucena | 28–30 | 48.28% |
| KingKayJ vs Bryan | 28–29 | 49.12% |
| KingKayJ vs Dragunov | 19–35 | 35.19% |
| KingKayJ vs Law | 19–34 | 35.85% |
| KingKayJ vs Yoshimitsu | 20–25–1 | 44.44% |
| KingKayJ vs Lars | 15–31 | 32.61% |
| KingKayJ vs Victor | 11–33 | 25.00% |
| KingKayJ vs Lili | 21–22 | 48.84% |
| KingKayJ vs Paul | 18–22 | 45.00% |
| KingKayJ vs Leroy | 14–26 | 35.00% |
| KingKayJ vs Steve | 22–16 | 57.89% |
| KingKayJ vs Asuka | 16–19 | 45.71% |
| KingKayJ vs Lee | 13–21 | 38.24% |
| KingKayJ vs Devil Jin | 12–20 | 37.50% |
| KingKayJ vs Nina | 9–20 | 31.03% |
| KingKayJ vs Xiaoyu | 14–14 | 50.00% |
| KingKayJ vs Alisa | 11–15 | 42.31% |
| KingKayJ vs Feng | 9–16 | 36.00% |
| KingKayJ vs Jack-8 | 7–14 | 33.33% |
| KingKayJ vs Raven | 9–11 | 45.00% |
| KingKayJ vs Kuma | 5–12 | 29.41% |
| KingKayJ vs Shaheen | 9–7 | 56.25% |
| KingKayJ vs Claudio | 9–0 | 100.00% |
| KingKayJ vs Zafina | 2–3 | 40.00% |
| KingKayJ vs Clive | 1–4 | 20.00% |
| KingKayJ vs Lidia | 1–2 | 33.33% |
| KingKayJ vs Panda | 0–2 | 0.00% |
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.