| Kaii vs Kazuya | 42–29 | 59.15% |
| Kaii vs Jin | 40–23 | 63.49% |
| Kaii vs Yoshimitsu | 40–18 | 68.97% |
| Kaii vs Hwoarang | 37–21 | 63.79% |
| Kaii vs Bryan | 32–22 | 59.26% |
| Kaii vs Paul | 22–16 | 57.89% |
| Kaii vs Dragunov | 20–17 | 54.05% |
| Kaii vs Devil Jin | 28–8 | 77.78% |
| Kaii vs Nina | 22–11 | 66.67% |
| Kaii vs Steve | 23–9 | 71.88% |
| Kaii vs Reina | 23–8 | 74.19% |
| Kaii vs Lee | 16–14 | 53.33% |
| Kaii vs King | 19–10 | 65.52% |
| Kaii vs Lars | 18–10 | 64.29% |
| Kaii vs Law | 17–6 | 73.91% |
| Kaii vs Lili | 10–13 | 43.48% |
| Kaii vs Xiaoyu | 10–10 | 50.00% |
| Kaii vs Jun | 10–9 | 52.63% |
| Kaii vs Heihachi | 11–8 | 57.89% |
| Kaii vs Asuka | 10–8 | 55.56% |
| Kaii vs Armor King | 9–8 | 52.94% |
| Kaii vs Leo | 5–11 | 31.25% |
| Kaii vs Feng | 7–8 | 46.67% |
| Kaii vs Raven | 6–9 | 40.00% |
| Kaii vs Jack-8 | 9–5 | 64.29% |
| Kaii vs Claudio | 7–6 | 53.85% |
| Kaii vs Eddy | 7–4 | 63.64% |
| Kaii vs Anna | 3–8 | 27.27% |
| Kaii vs Victor | 3–7 | 30.00% |
| Kaii vs Lidia | 8–1 | 88.89% |
| Kaii vs Leroy | 3–5 | 37.50% |
| Kaii vs Azucena | 3–5 | 37.50% |
| Kaii vs Zafina | 4–3 | 57.14% |
| Kaii vs Fahkumram | 5–2 | 71.43% |
| Kaii vs Kuma | 1–4 | 20.00% |
| Kaii vs Alisa | 2–2 | 50.00% |
| Kaii vs Shaheen | 3–0 | 100.00% |
| Kaii vs Panda | 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.