| Kaiio vs Kazuya | 13–5 | 72.22% |
| Kaiio vs Law | 13–2 | 86.67% |
| Kaiio vs King | 9–5 | 64.29% |
| Kaiio vs Hwoarang | 8–4 | 66.67% |
| Kaiio vs Jin | 7–5 | 58.33% |
| Kaiio vs Xiaoyu | 5–5 | 50.00% |
| Kaiio vs Steve | 3–4 | 42.86% |
| Kaiio vs Nina | 5–2 | 71.43% |
| Kaiio vs Asuka | 4–2 | 66.67% |
| Kaiio vs Jun | 2–4 | 33.33% |
| Kaiio vs Lili | 2–3 | 40.00% |
| Kaiio vs Dragunov | 3–2 | 60.00% |
| Kaiio vs Leroy | 4–1 | 80.00% |
| Kaiio vs Raven | 3–2 | 60.00% |
| Kaiio vs Paul | 3–1 | 75.00% |
| Kaiio vs Bryan | 4–0 | 100.00% |
| Kaiio vs Leo | 2–2 | 50.00% |
| Kaiio vs Reina | 3–1 | 75.00% |
| Kaiio vs Eddy | 1–3 | 25.00% |
| Kaiio vs Yoshimitsu | 1–2 | 33.33% |
| Kaiio vs Devil Jin | 1–2 | 33.33% |
| Kaiio vs Lee | 3–0 | 100.00% |
| Kaiio vs Victor | 1–2 | 33.33% |
| Kaiio vs Feng | 0–2 | 0.00% |
| Kaiio vs Shaheen | 2–0 | 100.00% |
| Kaiio vs Jack-8 | 0–1 | 0.00% |
| Kaiio vs Lars | 1–0 | 100.00% |
| Kaiio vs Alisa | 0–1 | 0.00% |
| Kaiio vs Panda | 0–1 | 0.00% |
| Kaiio vs Zafina | 0–1 | 0.00% |
| Kaiio vs Azucena | 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.