| Kai99 vs Dragunov | 45–32 | 58.44% |
| Kai99 vs Jin | 38–28 | 57.58% |
| Kai99 vs Steve | 29–21 | 58.00% |
| Kai99 vs Reina | 29–19 | 60.42% |
| Kai99 vs Armor King | 16–28 | 36.36% |
| Kai99 vs King | 24–17 | 58.54% |
| Kai99 vs Kazuya | 23–18 | 56.10% |
| Kai99 vs Lili | 25–10 | 71.43% |
| Kai99 vs Xiaoyu | 15–15 | 50.00% |
| Kai99 vs Lee | 11–14 | 44.00% |
| Kai99 vs Yoshimitsu | 8–14 | 36.36% |
| Kai99 vs Bryan | 10–12 | 45.45% |
| Kai99 vs Victor | 11–11 | 50.00% |
| Kai99 vs Hwoarang | 12–9 | 57.14% |
| Kai99 vs Paul | 11–8 | 57.89% |
| Kai99 vs Law | 8–11 | 42.11% |
| Kai99 vs Jun | 5–12 | 29.41% |
| Kai99 vs Heihachi | 8–8 | 50.00% |
| Kai99 vs Clive | 8–8 | 50.00% |
| Kai99 vs Alisa | 11–4 | 73.33% |
| Kai99 vs Asuka | 8–6 | 57.14% |
| Kai99 vs Leo | 6–6 | 50.00% |
| Kai99 vs Shaheen | 3–9 | 25.00% |
| Kai99 vs Devil Jin | 9–2 | 81.82% |
| Kai99 vs Jack-8 | 6–2 | 75.00% |
| Kai99 vs Lars | 2–6 | 25.00% |
| Kai99 vs Eddy | 5–3 | 62.50% |
| Kai99 vs Nina | 4–3 | 57.14% |
| Kai99 vs Raven | 2–5 | 28.57% |
| Kai99 vs Kuma | 2–4 | 33.33% |
| Kai99 vs Leroy | 5–1 | 83.33% |
| Kai99 vs Claudio | 1–4 | 20.00% |
| Kai99 vs Azucena | 3–2 | 60.00% |
| Kai99 vs Fahkumram | 3–2 | 60.00% |
| Kai99 vs Lidia | 2–2 | 50.00% |
| Kai99 vs Anna | 1–3 | 25.00% |
| Kai99 vs Feng | 2–0 | 100.00% |
| Kai99 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.