| Jeph vs Reina | 28–36 | 43.75% |
| Jeph vs Kazuya | 26–36 | 41.94% |
| Jeph vs Bryan | 25–28 | 47.17% |
| Jeph vs Yoshimitsu | 25–25 | 50.00% |
| Jeph vs Jin | 18–31 | 36.73% |
| Jeph vs Hwoarang | 19–28 | 40.43% |
| Jeph vs King | 22–20 | 52.38% |
| Jeph vs Paul | 19–18 | 51.35% |
| Jeph vs Eddy | 19–17 | 52.78% |
| Jeph vs Steve | 12–16 | 42.86% |
| Jeph vs Lili | 13–15 | 46.43% |
| Jeph vs Claudio | 13–13 | 50.00% |
| Jeph vs Dragunov | 13–12 | 52.00% |
| Jeph vs Law | 7–17 | 29.17% |
| Jeph vs Feng | 11–13 | 45.83% |
| Jeph vs Jun | 10–14 | 41.67% |
| Jeph vs Devil Jin | 13–10 | 56.52% |
| Jeph vs Lars | 12–9 | 57.14% |
| Jeph vs Asuka | 7–10 | 41.18% |
| Jeph vs Lee | 7–10 | 41.18% |
| Jeph vs Xiaoyu | 11–5 | 68.75% |
| Jeph vs Azucena | 3–11 | 21.43% |
| Jeph vs Kuma | 7–5 | 58.33% |
| Jeph vs Leroy | 5–7 | 41.67% |
| Jeph vs Jack-8 | 6–5 | 54.55% |
| Jeph vs Victor | 5–6 | 45.45% |
| Jeph vs Nina | 4–5 | 44.44% |
| Jeph vs Shaheen | 3–5 | 37.50% |
| Jeph vs Alisa | 2–4 | 33.33% |
| Jeph vs Zafina | 3–2 | 60.00% |
| Jeph vs Raven | 4–1 | 80.00% |
| Jeph vs Leo | 0–2 | 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.