| Kowawa13 vs King | 12–19 | 38.71% |
| Kowawa13 vs Steve | 14–11 | 56.00% |
| Kowawa13 vs Bryan | 9–9 | 50.00% |
| Kowawa13 vs Dragunov | 5–13 | 27.78% |
| Kowawa13 vs Hwoarang | 5–9 | 35.71% |
| Kowawa13 vs Reina | 7–7 | 50.00% |
| Kowawa13 vs Jin | 4–9 | 30.77% |
| Kowawa13 vs Lili | 5–7 | 41.67% |
| Kowawa13 vs Jun | 5–6 | 45.45% |
| Kowawa13 vs Azucena | 3–8 | 27.27% |
| Kowawa13 vs Eddy | 2–9 | 18.18% |
| Kowawa13 vs Law | 7–3 | 70.00% |
| Kowawa13 vs Kazuya | 7–3 | 70.00% |
| Kowawa13 vs Devil Jin | 5–4 | 55.56% |
| Kowawa13 vs Lars | 3–6 | 33.33% |
| Kowawa13 vs Lidia | 5–4 | 55.56% |
| Kowawa13 vs Asuka | 1–6 | 14.29% |
| Kowawa13 vs Yoshimitsu | 3–3 | 50.00% |
| Kowawa13 vs Lee | 4–2 | 66.67% |
| Kowawa13 vs Fahkumram | 6–0 | 100.00% |
| Kowawa13 vs Feng | 1–4 | 20.00% |
| Kowawa13 vs Nina | 2–3 | 40.00% |
| Kowawa13 vs Leroy | 4–1 | 80.00% |
| Kowawa13 vs Victor | 3–2 | 60.00% |
| Kowawa13 vs Paul | 0–4 | 0.00% |
| Kowawa13 vs Xiaoyu | 1–3 | 25.00% |
| Kowawa13 vs Clive | 2–2 | 50.00% |
| Kowawa13 vs Leo | 1–2 | 33.33% |
| Kowawa13 vs Alisa | 3–0 | 100.00% |
| Kowawa13 vs Claudio | 2–1 | 66.67% |
| Kowawa13 vs Raven | 1–2 | 33.33% |
| Kowawa13 vs Heihachi | 2–1 | 66.67% |
| Kowawa13 vs Jack-8 | 1–1 | 50.00% |
| Kowawa13 vs Shaheen | 0–2 | 0.00% |
| Kowawa13 vs Anna | 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.