| JShack vs Kazuya | 97–80 | 54.80% |
| JShack vs King | 80–88 | 47.62% |
| JShack vs Jin | 79–71 | 52.67% |
| JShack vs Reina | 71–77 | 47.97% |
| JShack vs Bryan | 58–65 | 47.15% |
| JShack vs Steve | 64–56 | 53.33% |
| JShack vs Law | 51–57 | 47.22% |
| JShack vs Lili | 48–52 | 48.00% |
| JShack vs Hwoarang | 45–53 | 45.92% |
| JShack vs Heihachi | 52–40 | 56.52% |
| JShack vs Yoshimitsu | 33–45 | 42.31% |
| JShack vs Clive | 34–44 | 43.59% |
| JShack vs Paul | 39–37 | 51.32% |
| JShack vs Azucena | 39–37 | 51.32% |
| JShack vs Lee | 43–32 | 57.33% |
| JShack vs Eddy | 33–41 | 44.59% |
| JShack vs Dragunov | 35–37 | 48.61% |
| JShack vs Asuka | 36–33 | 52.17% |
| JShack vs Leo | 35–32 | 52.24% |
| JShack vs Lars | 28–39 | 41.79% |
| JShack vs Raven | 37–27 | 57.81% |
| JShack vs Jack-8 | 32–29 | 52.46% |
| JShack vs Feng | 33–27 | 55.00% |
| JShack vs Leroy | 35–25 | 58.33% |
| JShack vs Jun | 29–28 | 50.88% |
| JShack vs Nina | 20–35 | 36.36% |
| JShack vs Xiaoyu | 21–33 | 38.89% |
| JShack vs Lidia | 18–31 | 36.73% |
| JShack vs Victor | 24–24 | 50.00% |
| JShack vs Devil Jin | 18–19 | 48.65% |
| JShack vs Claudio | 13–23 | 36.11% |
| JShack vs Anna | 22–13 | 62.86% |
| JShack vs Alisa | 14–15 | 48.28% |
| JShack vs Kuma | 12–11 | 52.17% |
| JShack vs Shaheen | 7–12 | 36.84% |
| JShack vs Zafina | 9–10 | 47.37% |
| JShack vs Fahkumram | 7–12 | 36.84% |
| JShack vs Panda | 3–8 | 27.27% |
| JShack vs Armor King | 0–7 | 0.00% |
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.