| Feppjakk vs Jin | 8–14 | 36.36% |
| Feppjakk vs Reina | 10–12 | 45.45% |
| Feppjakk vs Kazuya | 12–8 | 60.00% |
| Feppjakk vs King | 2–16 | 11.11% |
| Feppjakk vs Hwoarang | 7–10 | 41.18% |
| Feppjakk vs Bryan | 7–10 | 41.18% |
| Feppjakk vs Azucena | 7–10 | 41.18% |
| Feppjakk vs Steve | 6–10 | 37.50% |
| Feppjakk vs Jun | 7–9 | 43.75% |
| Feppjakk vs Lili | 6–9 | 40.00% |
| Feppjakk vs Eddy | 6–7 | 46.15% |
| Feppjakk vs Yoshimitsu | 4–8 | 33.33% |
| Feppjakk vs Claudio | 0–12 | 0.00% |
| Feppjakk vs Nina | 4–7 | 36.36% |
| Feppjakk vs Devil Jin | 3–6 | 33.33% |
| Feppjakk vs Victor | 5–4 | 55.56% |
| Feppjakk vs Xiaoyu | 3–5 | 37.50% |
| Feppjakk vs Lee | 4–4 | 50.00% |
| Feppjakk vs Jack-8 | 2–5 | 28.57% |
| Feppjakk vs Asuka | 1–6 | 14.29% |
| Feppjakk vs Dragunov | 3–4 | 42.86% |
| Feppjakk vs Alisa | 5–2 | 71.43% |
| Feppjakk vs Zafina | 4–3 | 57.14% |
| Feppjakk vs Lars | 4–2 | 66.67% |
| Feppjakk vs Law | 1–4 | 20.00% |
| Feppjakk vs Leo | 1–4 | 20.00% |
| Feppjakk vs Feng | 1–2 | 33.33% |
| Feppjakk vs Panda | 2–0 | 100.00% |
| Feppjakk vs Paul | 0–1 | 0.00% |
| Feppjakk vs Leroy | 0–1 | 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.