| Japi vs Jin | 20–30 | 40.00% |
| Japi vs Hwoarang | 14–21 | 40.00% |
| Japi vs Kazuya | 13–14 | 48.15% |
| Japi vs Reina | 11–14 | 44.00% |
| Japi vs King | 10–13 | 43.48% |
| Japi vs Steve | 10–13 | 43.48% |
| Japi vs Dragunov | 12–10 | 54.55% |
| Japi vs Paul | 7–14 | 33.33% |
| Japi vs Law | 7–12 | 36.84% |
| Japi vs Lili | 4–13 | 23.53% |
| Japi vs Lee | 7–10 | 41.18% |
| Japi vs Heihachi | 2–13 | 13.33% |
| Japi vs Bryan | 0–14 | 0.00% |
| Japi vs Asuka | 2–12 | 14.29% |
| Japi vs Yoshimitsu | 3–9 | 25.00% |
| Japi vs Leroy | 4–7 | 36.36% |
| Japi vs Victor | 5–6 | 45.45% |
| Japi vs Jun | 0–9 | 0.00% |
| Japi vs Xiaoyu | 1–7 | 12.50% |
| Japi vs Feng | 4–4 | 50.00% |
| Japi vs Lidia | 2–6 | 25.00% |
| Japi vs Leo | 1–5 | 16.67% |
| Japi vs Lars | 4–1 | 80.00% |
| Japi vs Claudio | 0–5 | 0.00% |
| Japi vs Azucena | 0–5 | 0.00% |
| Japi vs Jack-8 | 2–1 | 66.67% |
| Japi vs Nina | 0–3 | 0.00% |
| Japi vs Panda | 2–1 | 66.67% |
| Japi vs Zafina | 0–3 | 0.00% |
| Japi vs Kuma | 0–2 | 0.00% |
| Japi vs Eddy | 0–2 | 0.00% |
| Japi vs Devil Jin | 1–0 | 100.00% |
| Japi vs Alisa | 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.