| Jaacu vs Kazuya | 77–46 | 62.60% |
| Jaacu vs Bryan | 71–48 | 59.66% |
| Jaacu vs Reina | 57–55 | 50.89% |
| Jaacu vs Heihachi | 49–56 | 46.67% |
| Jaacu vs Jin | 51–42 | 54.84% |
| Jaacu vs Hwoarang | 40–40 | 50.00% |
| Jaacu vs King | 31–41 | 43.06% |
| Jaacu vs Paul | 37–31 | 54.41% |
| Jaacu vs Yoshimitsu | 33–35 | 48.53% |
| Jaacu vs Dragunov | 32–34 | 48.48% |
| Jaacu vs Steve | 40–23 | 63.49% |
| Jaacu vs Law | 28–28 | 50.00% |
| Jaacu vs Lili | 32–20 | 61.54% |
| Jaacu vs Azucena | 24–21 | 53.33% |
| Jaacu vs Lars | 19–22 | 46.34% |
| Jaacu vs Lee | 22–18 | 55.00% |
| Jaacu vs Kuma | 18–21 | 46.15% |
| Jaacu vs Victor | 12–24 | 33.33% |
| Jaacu vs Xiaoyu | 16–19 | 45.71% |
| Jaacu vs Feng | 15–19 | 44.12% |
| Jaacu vs Devil Jin | 19–14 | 57.58% |
| Jaacu vs Jun | 20–13 | 60.61% |
| Jaacu vs Alisa | 12–19 | 38.71% |
| Jaacu vs Leroy | 17–11 | 60.71% |
| Jaacu vs Asuka | 18–9 | 66.67% |
| Jaacu vs Raven | 15–9 | 62.50% |
| Jaacu vs Leo | 9–14 | 39.13% |
| Jaacu vs Nina | 10–13 | 43.48% |
| Jaacu vs Jack-8 | 5–13 | 27.78% |
| Jaacu vs Shaheen | 9–9 | 50.00% |
| Jaacu vs Claudio | 9–5 | 64.29% |
| Jaacu vs Zafina | 4–10 | 28.57% |
| Jaacu vs Eddy | 4–9 | 30.77% |
| Jaacu vs Lidia | 5–5 | 50.00% |
| Jaacu vs Panda | 3–3 | 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.