| Ken Masters vs Reina | 77–73 | 51.33% |
| Ken Masters vs King | 52–87 | 37.41% |
| Ken Masters vs Kazuya | 47–66 | 41.59% |
| Ken Masters vs Hwoarang | 32–76 | 29.63% |
| Ken Masters vs Law | 31–72 | 30.10% |
| Ken Masters vs Heihachi | 43–58 | 42.57% |
| Ken Masters vs Eddy | 29–64 | 31.18% |
| Ken Masters vs Steve | 43–49 | 46.74% |
| Ken Masters vs Dragunov | 36–49 | 42.35% |
| Ken Masters vs Clive | 36–47 | 43.37% |
| Ken Masters vs Jin | 41–41 | 50.00% |
| Ken Masters vs Lars | 21–54 | 28.00% |
| Ken Masters vs Lili | 34–37 | 47.89% |
| Ken Masters vs Azucena | 30–41 | 42.25% |
| Ken Masters vs Jun | 29–38 | 43.28% |
| Ken Masters vs Asuka | 24–41 | 36.92% |
| Ken Masters vs Yoshimitsu | 29–34 | 46.03% |
| Ken Masters vs Bryan | 26–37 | 41.27% |
| Ken Masters vs Victor | 23–40 | 36.51% |
| Ken Masters vs Nina | 26–28 | 48.15% |
| Ken Masters vs Lee | 21–33 | 38.89% |
| Ken Masters vs Leroy | 19–31 | 38.00% |
| Ken Masters vs Xiaoyu | 22–27 | 44.90% |
| Ken Masters vs Paul | 12–34 | 26.09% |
| Ken Masters vs Devil Jin | 18–25 | 41.86% |
| Ken Masters vs Lidia | 29–14 | 67.44% |
| Ken Masters vs Jack-8 | 14–16 | 46.67% |
| Ken Masters vs Kuma | 7–23 | 23.33% |
| Ken Masters vs Alisa | 8–20 | 28.57% |
| Ken Masters vs Shaheen | 18–8 | 69.23% |
| Ken Masters vs Claudio | 5–20 | 20.00% |
| Ken Masters vs Zafina | 14–9 | 60.87% |
| Ken Masters vs Leo | 10–10–1 | 50.00% |
| Ken Masters vs Raven | 12–9 | 57.14% |
| Ken Masters vs Feng | 3–11 | 21.43% |
| Ken Masters vs Panda | 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.