| Hiwatari Kai vs Kazuya | 19–14 | 57.58% |
| Hiwatari Kai vs Hwoarang | 15–6 | 71.43% |
| Hiwatari Kai vs King | 9–6 | 60.00% |
| Hiwatari Kai vs Law | 8–6 | 57.14% |
| Hiwatari Kai vs Steve | 10–3 | 76.92% |
| Hiwatari Kai vs Dragunov | 6–6 | 50.00% |
| Hiwatari Kai vs Clive | 7–5 | 58.33% |
| Hiwatari Kai vs Jin | 4–7 | 36.36% |
| Hiwatari Kai vs Leroy | 9–2 | 81.82% |
| Hiwatari Kai vs Lili | 5–4 | 55.56% |
| Hiwatari Kai vs Anna | 4–5 | 44.44% |
| Hiwatari Kai vs Eddy | 3–5 | 37.50% |
| Hiwatari Kai vs Bryan | 1–6 | 14.29% |
| Hiwatari Kai vs Jun | 4–3 | 57.14% |
| Hiwatari Kai vs Lidia | 3–4 | 42.86% |
| Hiwatari Kai vs Jack-8 | 2–4 | 33.33% |
| Hiwatari Kai vs Alisa | 3–3 | 50.00% |
| Hiwatari Kai vs Reina | 2–4 | 33.33% |
| Hiwatari Kai vs Heihachi | 4–2 | 66.67% |
| Hiwatari Kai vs Paul | 4–1 | 80.00% |
| Hiwatari Kai vs Xiaoyu | 1–4 | 20.00% |
| Hiwatari Kai vs Feng | 2–3 | 40.00% |
| Hiwatari Kai vs Nina | 3–2 | 60.00% |
| Hiwatari Kai vs Victor | 2–3 | 40.00% |
| Hiwatari Kai vs Yoshimitsu | 1–3 | 25.00% |
| Hiwatari Kai vs Lars | 2–1 | 66.67% |
| Hiwatari Kai vs Claudio | 1–2 | 33.33% |
| Hiwatari Kai vs Asuka | 0–2 | 0.00% |
| Hiwatari Kai vs Lee | 0–2 | 0.00% |
| Hiwatari Kai vs Azucena | 1–1 | 50.00% |
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.