| Kumachi vs Kazuya | 25–23 | 52.08% |
| Kumachi vs Hwoarang | 24–17 | 58.54% |
| Kumachi vs King | 24–15 | 61.54% |
| Kumachi vs Jin | 19–16 | 54.29% |
| Kumachi vs Steve | 22–13 | 62.86% |
| Kumachi vs Bryan | 18–14 | 56.25% |
| Kumachi vs Jun | 18–14 | 56.25% |
| Kumachi vs Reina | 15–14 | 51.72% |
| Kumachi vs Yoshimitsu | 19–8 | 70.37% |
| Kumachi vs Lili | 11–16 | 40.74% |
| Kumachi vs Azucena | 21–6 | 77.78% |
| Kumachi vs Law | 18–6 | 75.00% |
| Kumachi vs Dragunov | 15–8 | 65.22% |
| Kumachi vs Eddy | 7–14 | 33.33% |
| Kumachi vs Feng | 7–12 | 36.84% |
| Kumachi vs Xiaoyu | 8–10 | 44.44% |
| Kumachi vs Victor | 3–15 | 16.67% |
| Kumachi vs Asuka | 11–5 | 68.75% |
| Kumachi vs Lars | 4–11 | 26.67% |
| Kumachi vs Alisa | 6–8 | 42.86% |
| Kumachi vs Heihachi | 4–10 | 28.57% |
| Kumachi vs Armor King | 6–8 | 42.86% |
| Kumachi vs Leo | 7–6 | 53.85% |
| Kumachi vs Jack-8 | 5–7 | 41.67% |
| Kumachi vs Devil Jin | 2–10 | 16.67% |
| Kumachi vs Shaheen | 7–3 | 70.00% |
| Kumachi vs Raven | 7–3 | 70.00% |
| Kumachi vs Nina | 8–1 | 88.89% |
| Kumachi vs Clive | 6–3 | 66.67% |
| Kumachi vs Paul | 4–3 | 57.14% |
| Kumachi vs Kuma | 3–4 | 42.86% |
| Kumachi vs Lidia | 4–3 | 57.14% |
| Kumachi vs Claudio | 4–2 | 66.67% |
| Kumachi vs Lee | 2–4 | 33.33% |
| Kumachi vs Zafina | 2–4 | 33.33% |
| Kumachi vs Fahkumram | 3–2 | 60.00% |
| Kumachi vs Leroy | 2–2 | 50.00% |
| Kumachi vs Anna | 4–0 | 100.00% |
| Kumachi vs Panda | 2–1 | 66.67% |
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.