| Jaca vs King | 47–44 | 51.65% |
| Jaca vs Jin | 31–41 | 43.06% |
| Jaca vs Kazuya | 26–22 | 54.17% |
| Jaca vs Steve | 22–24 | 47.83% |
| Jaca vs Lili | 25–21 | 54.35% |
| Jaca vs Reina | 24–22 | 52.17% |
| Jaca vs Law | 23–20 | 53.49% |
| Jaca vs Asuka | 13–30 | 30.23% |
| Jaca vs Eddy | 13–23 | 36.11% |
| Jaca vs Azucena | 13–22 | 37.14% |
| Jaca vs Jun | 16–18 | 47.06% |
| Jaca vs Bryan | 13–19 | 40.62% |
| Jaca vs Dragunov | 16–13 | 55.17% |
| Jaca vs Hwoarang | 12–16 | 42.86% |
| Jaca vs Nina | 15–9 | 62.50% |
| Jaca vs Lars | 11–9 | 55.00% |
| Jaca vs Paul | 12–7 | 63.16% |
| Jaca vs Devil Jin | 11–8 | 57.89% |
| Jaca vs Victor | 3–10 | 23.08% |
| Jaca vs Lidia | 5–8 | 38.46% |
| Jaca vs Xiaoyu | 4–8 | 33.33% |
| Jaca vs Kuma | 6–6 | 50.00% |
| Jaca vs Leo | 3–8 | 27.27% |
| Jaca vs Alisa | 7–4 | 63.64% |
| Jaca vs Lee | 1–10 | 9.09% |
| Jaca vs Yoshimitsu | 2–8 | 20.00% |
| Jaca vs Raven | 3–7 | 30.00% |
| Jaca vs Feng | 6–2 | 75.00% |
| Jaca vs Armor King | 5–3 | 62.50% |
| Jaca vs Shaheen | 1–6 | 14.29% |
| Jaca vs Heihachi | 4–3 | 57.14% |
| Jaca vs Clive | 1–6 | 14.29% |
| Jaca vs Jack-8 | 0–6 | 0.00% |
| Jaca vs Claudio | 0–5 | 0.00% |
| Jaca vs Zafina | 1–4 | 20.00% |
| Jaca vs Leroy | 2–3 | 40.00% |
| Jaca vs Miary Zo | 0–4 | 0.00% |
| Jaca vs Anna | 2–1 | 66.67% |
| Jaca vs Panda | 2–0 | 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.