| Kaii vs Jin | 16–7 | 69.57% |
| Kaii vs Law | 12–7 | 63.16% |
| Kaii vs King | 7–12 | 36.84% |
| Kaii vs Reina | 12–7 | 63.16% |
| Kaii vs Kazuya | 6–10 | 37.50% |
| Kaii vs Bryan | 8–7 | 53.33% |
| Kaii vs Dragunov | 11–4 | 73.33% |
| Kaii vs Paul | 8–6 | 57.14% |
| Kaii vs Lidia | 4–9 | 30.77% |
| Kaii vs Hwoarang | 4–7 | 36.36% |
| Kaii vs Steve | 6–5 | 54.55% |
| Kaii vs Lili | 7–4 | 63.64% |
| Kaii vs Lars | 4–6 | 40.00% |
| Kaii vs Claudio | 6–3 | 66.67% |
| Kaii vs Jun | 5–4 | 55.56% |
| Kaii vs Yoshimitsu | 3–5 | 37.50% |
| Kaii vs Xiaoyu | 6–2 | 75.00% |
| Kaii vs Asuka | 4–4 | 50.00% |
| Kaii vs Jack-8 | 3–3 | 50.00% |
| Kaii vs Nina | 4–2 | 66.67% |
| Kaii vs Kuma | 4–2 | 66.67% |
| Kaii vs Victor | 4–2 | 66.67% |
| Kaii vs Feng | 2–3 | 40.00% |
| Kaii vs Alisa | 2–3 | 40.00% |
| Kaii vs Azucena | 3–2 | 60.00% |
| Kaii vs Raven | 3–2 | 60.00% |
| Kaii vs Eddy | 4–1 | 80.00% |
| Kaii vs Lee | 3–1 | 75.00% |
| Kaii vs Leo | 2–1 | 66.67% |
| Kaii vs Leroy | 3–0 | 100.00% |
| Kaii vs Devil Jin | 0–2 | 0.00% |
| Kaii vs Shaheen | 2–0 | 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.