| Keppi vs Hwoarang | 9–9 | 50.00% |
| Keppi vs King | 10–7 | 58.82% |
| Keppi vs Steve | 12–4 | 75.00% |
| Keppi vs Yoshimitsu | 5–6 | 45.45% |
| Keppi vs Law | 8–2 | 80.00% |
| Keppi vs Reina | 6–4 | 60.00% |
| Keppi vs Lili | 7–2 | 77.78% |
| Keppi vs Jun | 5–3 | 62.50% |
| Keppi vs Azucena | 7–1 | 87.50% |
| Keppi vs Jin | 5–2 | 71.43% |
| Keppi vs Nina | 4–3 | 57.14% |
| Keppi vs Lidia | 4–3 | 57.14% |
| Keppi vs Asuka | 2–3 | 40.00% |
| Keppi vs Bryan | 4–0 | 100.00% |
| Keppi vs Jack-8 | 1–3 | 25.00% |
| Keppi vs Lars | 1–3 | 25.00% |
| Keppi vs Eddy | 0–4 | 0.00% |
| Keppi vs Armor King | 4–0 | 100.00% |
| Keppi vs Paul | 3–0 | 100.00% |
| Keppi vs Xiaoyu | 3–0 | 100.00% |
| Keppi vs Devil Jin | 0–3 | 0.00% |
| Keppi vs Dragunov | 3–0 | 100.00% |
| Keppi vs Leroy | 2–1 | 66.67% |
| Keppi vs Victor | 1–2 | 33.33% |
| Keppi vs Kazuya | 1–1 | 50.00% |
| Keppi vs Alisa | 0–2 | 0.00% |
| Keppi vs Raven | 2–0 | 100.00% |
| Keppi vs Feng | 0–1 | 0.00% |
| Keppi vs Claudio | 1–0 | 100.00% |
| Keppi vs Lee | 1–0 | 100.00% |
| Keppi vs Kuma | 0–1 | 0.00% |
| Keppi vs Panda | 0–1 | 0.00% |
| Keppi vs Zafina | 1–0 | 100.00% |
| Keppi vs Clive | 1–0 | 100.00% |
| Keppi vs Fahkumram | 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.