| KeijinOS vs Kazuya | 130–105 | 55.32% |
| KeijinOS vs Jin | 117–94 | 55.45% |
| KeijinOS vs Hwoarang | 91–108 | 45.73% |
| KeijinOS vs King | 106–88 | 54.64% |
| KeijinOS vs Reina | 88–91 | 49.16% |
| KeijinOS vs Steve | 70–82 | 46.05% |
| KeijinOS vs Bryan | 66–76 | 46.48% |
| KeijinOS vs Heihachi | 71–62 | 53.38% |
| KeijinOS vs Paul | 51–70 | 42.15% |
| KeijinOS vs Dragunov | 66–52 | 55.93% |
| KeijinOS vs Yoshimitsu | 45–61 | 42.45% |
| KeijinOS vs Lili | 38–58 | 39.58% |
| KeijinOS vs Law | 45–43 | 51.14% |
| KeijinOS vs Lee | 50–33 | 60.24% |
| KeijinOS vs Devil Jin | 34–47 | 41.98% |
| KeijinOS vs Fahkumram | 42–37 | 53.16% |
| KeijinOS vs Asuka | 32–42 | 43.24% |
| KeijinOS vs Eddy | 25–42 | 37.31% |
| KeijinOS vs Azucena | 29–34 | 46.03% |
| KeijinOS vs Alisa | 34–27 | 55.74% |
| KeijinOS vs Nina | 23–36 | 38.98% |
| KeijinOS vs Xiaoyu | 23–31 | 42.59% |
| KeijinOS vs Anna | 25–25 | 50.00% |
| KeijinOS vs Lars | 16–33 | 32.65% |
| KeijinOS vs Jun | 20–27 | 42.55% |
| KeijinOS vs Victor | 24–19 | 55.81% |
| KeijinOS vs Feng | 13–28 | 31.71% |
| KeijinOS vs Leroy | 19–20 | 48.72% |
| KeijinOS vs Lidia | 17–22 | 43.59% |
| KeijinOS vs Leo | 16–21 | 43.24% |
| KeijinOS vs Raven | 18–13 | 58.06% |
| KeijinOS vs Claudio | 10–19 | 34.48% |
| KeijinOS vs Shaheen | 15–14 | 51.72% |
| KeijinOS vs Jack-8 | 9–18 | 33.33% |
| KeijinOS vs Clive | 8–12 | 40.00% |
| KeijinOS vs Armor King | 7–12 | 36.84% |
| KeijinOS vs Kuma | 8–4 | 66.67% |
| KeijinOS vs Panda | 5–7 | 41.67% |
| KeijinOS vs Zafina | 7–2 | 77.78% |
| KeijinOS vs Miary Zo | 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.