| Joppy vs Kazuya | 109–131 | 45.42% |
| Joppy vs Jin | 107–97 | 52.45% |
| Joppy vs King | 112–76 | 59.57% |
| Joppy vs Steve | 86–90 | 48.86% |
| Joppy vs Bryan | 67–90 | 42.68% |
| Joppy vs Dragunov | 80–68 | 54.05% |
| Joppy vs Hwoarang | 72–72 | 50.00% |
| Joppy vs Reina | 86–55 | 60.99% |
| Joppy vs Yoshimitsu | 77–60 | 56.20% |
| Joppy vs Law | 64–67 | 48.85% |
| Joppy vs Armor King | 63–62 | 50.40% |
| Joppy vs Lili | 56–63 | 47.06% |
| Joppy vs Paul | 65–53 | 55.08% |
| Joppy vs Heihachi | 68–48 | 58.62% |
| Joppy vs Azucena | 64–45 | 58.72% |
| Joppy vs Lee | 39–65 | 37.50% |
| Joppy vs Jun | 44–59 | 42.72% |
| Joppy vs Lars | 40–61 | 39.60% |
| Joppy vs Xiaoyu | 52–44 | 54.17% |
| Joppy vs Asuka | 47–45 | 51.09% |
| Joppy vs Devil Jin | 38–40 | 48.72% |
| Joppy vs Feng | 46–32 | 58.97% |
| Joppy vs Alisa | 30–35 | 46.15% |
| Joppy vs Victor | 38–23 | 62.30% |
| Joppy vs Eddy | 27–34 | 44.26% |
| Joppy vs Nina | 19–38 | 33.33% |
| Joppy vs Raven | 21–28 | 42.86% |
| Joppy vs Jack-8 | 22–26 | 45.83% |
| Joppy vs Lidia | 24–24 | 50.00% |
| Joppy vs Kuma | 19–25 | 43.18% |
| Joppy vs Leo | 16–26 | 38.10% |
| Joppy vs Fahkumram | 17–23 | 42.50% |
| Joppy vs Leroy | 17–22 | 43.59% |
| Joppy vs Shaheen | 17–20 | 45.95% |
| Joppy vs Claudio | 12–21 | 36.36% |
| Joppy vs Anna | 14–19 | 42.42% |
| Joppy vs Clive | 12–16 | 42.86% |
| Joppy vs Miary Zo | 13–11 | 54.17% |
| Joppy vs Zafina | 13–8 | 61.90% |
| Joppy vs Panda | 11–7 | 61.11% |
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.