| JKCooper vs Heihachi | 75–46 | 61.98% |
| JKCooper vs Reina | 67–44 | 60.36% |
| JKCooper vs Jin | 54–51 | 51.43% |
| JKCooper vs Lidia | 60–41 | 59.41% |
| JKCooper vs King | 43–38 | 53.09% |
| JKCooper vs Kazuya | 48–29 | 62.34% |
| JKCooper vs Bryan | 35–41 | 46.05% |
| JKCooper vs Steve | 39–37 | 51.32% |
| JKCooper vs Jun | 41–35 | 53.95% |
| JKCooper vs Hwoarang | 38–33 | 53.52% |
| JKCooper vs Lee | 31–30 | 50.82% |
| JKCooper vs Law | 31–26 | 54.39% |
| JKCooper vs Lars | 34–21 | 61.82% |
| JKCooper vs Azucena | 27–21 | 56.25% |
| JKCooper vs Clive | 31–17 | 64.58% |
| JKCooper vs Asuka | 19–27 | 41.30% |
| JKCooper vs Paul | 20–25 | 44.44% |
| JKCooper vs Lili | 22–23 | 48.89% |
| JKCooper vs Victor | 28–17 | 62.22% |
| JKCooper vs Dragunov | 15–25 | 37.50% |
| JKCooper vs Yoshimitsu | 24–15 | 61.54% |
| JKCooper vs Devil Jin | 19–20 | 48.72% |
| JKCooper vs Alisa | 17–20 | 45.95% |
| JKCooper vs Nina | 12–18 | 40.00% |
| JKCooper vs Eddy | 17–12 | 58.62% |
| JKCooper vs Leo | 13–15 | 46.43% |
| JKCooper vs Xiaoyu | 18–8 | 69.23% |
| JKCooper vs Raven | 11–12 | 47.83% |
| JKCooper vs Feng | 7–14 | 33.33% |
| JKCooper vs Leroy | 14–7 | 66.67% |
| JKCooper vs Kuma | 16–4 | 80.00% |
| JKCooper vs Zafina | 6–14 | 30.00% |
| JKCooper vs Claudio | 12–6 | 66.67% |
| JKCooper vs Shaheen | 7–8 | 46.67% |
| JKCooper vs Jack-8 | 11–3 | 78.57% |
| JKCooper vs Panda | 4–0 | 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.