| Kobuko vs Reina | 25–23 | 52.08% |
| Kobuko vs Lidia | 22–25 | 46.81% |
| Kobuko vs King | 22–23 | 48.89% |
| Kobuko vs Kazuya | 15–23 | 39.47% |
| Kobuko vs Dragunov | 16–22 | 42.11% |
| Kobuko vs Jin | 16–17 | 48.48% |
| Kobuko vs Steve | 14–19 | 42.42% |
| Kobuko vs Eddy | 8–19 | 29.63% |
| Kobuko vs Lili | 10–15 | 40.00% |
| Kobuko vs Paul | 5–19 | 20.83% |
| Kobuko vs Hwoarang | 14–9 | 60.87% |
| Kobuko vs Devil Jin | 15–8 | 65.22% |
| Kobuko vs Heihachi | 11–10 | 52.38% |
| Kobuko vs Law | 10–9 | 52.63% |
| Kobuko vs Bryan | 9–10 | 47.37% |
| Kobuko vs Azucena | 9–10 | 47.37% |
| Kobuko vs Yoshimitsu | 5–13 | 27.78% |
| Kobuko vs Leroy | 6–12 | 33.33% |
| Kobuko vs Asuka | 8–9 | 47.06% |
| Kobuko vs Jun | 8–8 | 50.00% |
| Kobuko vs Leo | 6–7 | 46.15% |
| Kobuko vs Lee | 8–5 | 61.54% |
| Kobuko vs Victor | 7–6 | 53.85% |
| Kobuko vs Feng | 5–8 | 38.46% |
| Kobuko vs Xiaoyu | 5–7 | 41.67% |
| Kobuko vs Nina | 3–9 | 25.00% |
| Kobuko vs Lars | 3–9 | 25.00% |
| Kobuko vs Claudio | 2–9 | 18.18% |
| Kobuko vs Jack-8 | 2–8 | 20.00% |
| Kobuko vs Alisa | 5–5 | 50.00% |
| Kobuko vs Shaheen | 6–3 | 66.67% |
| Kobuko vs Kuma | 3–5 | 37.50% |
| Kobuko vs Raven | 3–4 | 42.86% |
| Kobuko vs Zafina | 2–4 | 33.33% |
| Kobuko vs Panda | 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.