| Ja_Koko_A_Ty vs Jin | 8–7 | 53.33% |
| Ja_Koko_A_Ty vs Yoshimitsu | 10–4 | 71.43% |
| Ja_Koko_A_Ty vs Reina | 9–5 | 64.29% |
| Ja_Koko_A_Ty vs Hwoarang | 6–7 | 46.15% |
| Ja_Koko_A_Ty vs King | 4–7 | 36.36% |
| Ja_Koko_A_Ty vs Kazuya | 5–2 | 71.43% |
| Ja_Koko_A_Ty vs Jun | 3–4 | 42.86% |
| Ja_Koko_A_Ty vs Victor | 1–6 | 14.29% |
| Ja_Koko_A_Ty vs Jack-8 | 5–1 | 83.33% |
| Ja_Koko_A_Ty vs Azucena | 5–1 | 83.33% |
| Ja_Koko_A_Ty vs Paul | 4–1 | 80.00% |
| Ja_Koko_A_Ty vs Raven | 4–1 | 80.00% |
| Ja_Koko_A_Ty vs Steve | 4–0 | 100.00% |
| Ja_Koko_A_Ty vs Alisa | 2–2 | 50.00% |
| Ja_Koko_A_Ty vs Law | 3–0 | 100.00% |
| Ja_Koko_A_Ty vs Lee | 2–1 | 66.67% |
| Ja_Koko_A_Ty vs Eddy | 1–2 | 33.33% |
| Ja_Koko_A_Ty vs Lidia | 1–2 | 33.33% |
| Ja_Koko_A_Ty vs Bryan | 1–1 | 50.00% |
| Ja_Koko_A_Ty vs Lili | 0–2 | 0.00% |
| Ja_Koko_A_Ty vs Lars | 2–0 | 100.00% |
| Ja_Koko_A_Ty vs Claudio | 0–2 | 0.00% |
| Ja_Koko_A_Ty vs Xiaoyu | 1–0 | 100.00% |
| Ja_Koko_A_Ty vs Nina | 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.