| Keiken vs Armor King | 6–12 | 33.33% |
| Keiken vs Dragunov | 3–9 | 25.00% |
| Keiken vs King | 5–6 | 45.45% |
| Keiken vs Jin | 4–7 | 36.36% |
| Keiken vs Kazuya | 1–9 | 10.00% |
| Keiken vs Lars | 4–6 | 40.00% |
| Keiken vs Bryan | 1–8 | 11.11% |
| Keiken vs Steve | 3–5 | 37.50% |
| Keiken vs Law | 1–6 | 14.29% |
| Keiken vs Hwoarang | 2–5 | 28.57% |
| Keiken vs Asuka | 1–6 | 14.29% |
| Keiken vs Paul | 4–2 | 66.67% |
| Keiken vs Lili | 2–3 | 40.00% |
| Keiken vs Jun | 1–3 | 25.00% |
| Keiken vs Reina | 1–3 | 25.00% |
| Keiken vs Victor | 2–2 | 50.00% |
| Keiken vs Lidia | 0–4 | 0.00% |
| Keiken vs Xiaoyu | 0–3 | 0.00% |
| Keiken vs Yoshimitsu | 2–0 | 100.00% |
| Keiken vs Devil Jin | 1–1 | 50.00% |
| Keiken vs Alisa | 1–1 | 50.00% |
| Keiken vs Claudio | 0–2 | 0.00% |
| Keiken vs Kuma | 2–0 | 100.00% |
| Keiken vs Leroy | 0–2 | 0.00% |
| Keiken vs Azucena | 0–2 | 0.00% |
| Keiken vs Eddy | 1–1 | 50.00% |
| Keiken vs Clive | 2–0 | 100.00% |
| Keiken vs Miary Zo | 0–2 | 0.00% |
| Keiken vs Leo | 1–0 | 100.00% |
| Keiken vs Nina | 1–0 | 100.00% |
| Keiken vs Zafina | 1–0 | 100.00% |
| Keiken vs Anna | 0–1 | 0.00% |
| Keiken 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.