| Jeppy vs Hwoarang | 31–39 | 44.29% |
| Jeppy vs Jin | 36–29 | 55.38% |
| Jeppy vs Dragunov | 33–31 | 51.56% |
| Jeppy vs King | 28–33 | 45.90% |
| Jeppy vs Reina | 29–29 | 50.00% |
| Jeppy vs Kazuya | 22–35 | 38.60% |
| Jeppy vs Yoshimitsu | 29–24 | 54.72% |
| Jeppy vs Bryan | 29–23 | 55.77% |
| Jeppy vs Victor | 24–22 | 52.17% |
| Jeppy vs Leo | 22–22 | 50.00% |
| Jeppy vs Law | 25–16 | 60.98% |
| Jeppy vs Paul | 25–15 | 62.50% |
| Jeppy vs Asuka | 20–20 | 50.00% |
| Jeppy vs Jun | 25–15 | 62.50% |
| Jeppy vs Fahkumram | 19–20 | 48.72% |
| Jeppy vs Steve | 16–21 | 43.24% |
| Jeppy vs Eddy | 19–15 | 55.88% |
| Jeppy vs Claudio | 15–16 | 48.39% |
| Jeppy vs Lili | 21–8 | 72.41% |
| Jeppy vs Lars | 12–14 | 46.15% |
| Jeppy vs Lee | 15–11 | 57.69% |
| Jeppy vs Feng | 16–9 | 64.00% |
| Jeppy vs Alisa | 11–14 | 44.00% |
| Jeppy vs Zafina | 9–15 | 37.50% |
| Jeppy vs Shaheen | 8–15 | 34.78% |
| Jeppy vs Azucena | 9–13 | 40.91% |
| Jeppy vs Heihachi | 9–9 | 50.00% |
| Jeppy vs Xiaoyu | 9–8 | 52.94% |
| Jeppy vs Jack-8 | 5–12 | 29.41% |
| Jeppy vs Lidia | 3–11 | 21.43% |
| Jeppy vs Devil Jin | 7–6 | 53.85% |
| Jeppy vs Nina | 3–10 | 23.08% |
| Jeppy vs Leroy | 8–5 | 61.54% |
| Jeppy vs Raven | 5–6 | 45.45% |
| Jeppy vs Kuma | 2–6 | 25.00% |
| Jeppy vs Anna | 3–5 | 37.50% |
| Jeppy vs Panda | 2–3 | 40.00% |
| Jeppy vs Clive | 1–4 | 20.00% |
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.