| Kasai vs Kazuya | 16–42 | 27.59% |
| Kasai vs Eddy | 9–40 | 18.37% |
| Kasai vs Jin | 18–29 | 38.30% |
| Kasai vs Reina | 25–22 | 53.19% |
| Kasai vs King | 19–16 | 54.29% |
| Kasai vs Law | 13–19 | 40.62% |
| Kasai vs Bryan | 11–17 | 39.29% |
| Kasai vs Lili | 11–16 | 40.74% |
| Kasai vs Yoshimitsu | 7–18 | 28.00% |
| Kasai vs Hwoarang | 11–14 | 44.00% |
| Kasai vs Dragunov | 14–9 | 60.87% |
| Kasai vs Azucena | 14–9 | 60.87% |
| Kasai vs Steve | 8–13 | 38.10% |
| Kasai vs Lee | 8–13 | 38.10% |
| Kasai vs Jun | 10–10 | 50.00% |
| Kasai vs Nina | 11–8 | 57.89% |
| Kasai vs Victor | 7–12 | 36.84% |
| Kasai vs Devil Jin | 1–17 | 5.56% |
| Kasai vs Lars | 5–13 | 27.78% |
| Kasai vs Paul | 5–12 | 29.41% |
| Kasai vs Xiaoyu | 10–7 | 58.82% |
| Kasai vs Alisa | 4–9 | 30.77% |
| Kasai vs Kuma | 4–9 | 30.77% |
| Kasai vs Clive | 3–8 | 27.27% |
| Kasai vs Leo | 5–4 | 55.56% |
| Kasai vs Leroy | 4–5 | 44.44% |
| Kasai vs Heihachi | 4–5 | 44.44% |
| Kasai vs Claudio | 2–6 | 25.00% |
| Kasai vs Anna | 8–0 | 100.00% |
| Kasai vs Asuka | 3–4 | 42.86% |
| Kasai vs Feng | 1–6 | 14.29% |
| Kasai vs Zafina | 3–4 | 42.86% |
| Kasai vs Panda | 1–4 | 20.00% |
| Kasai vs Shaheen | 0–4 | 0.00% |
| Kasai vs Jack-8 | 1–2 | 33.33% |
| Kasai vs Lidia | 1–2 | 33.33% |
| Kasai vs Fahkumram | 1–2 | 33.33% |
| Kasai vs Raven | 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.