| Koumar vs King | 8–12 | 40.00% |
| Koumar vs Kazuya | 4–10 | 28.57% |
| Koumar vs Yoshimitsu | 10–2 | 83.33% |
| Koumar vs Alisa | 3–7 | 30.00% |
| Koumar vs Bryan | 2–7 | 22.22% |
| Koumar vs Steve | 7–2 | 77.78% |
| Koumar vs Law | 5–3 | 62.50% |
| Koumar vs Reina | 6–2 | 75.00% |
| Koumar vs Raven | 3–5 | 37.50% |
| Koumar vs Eddy | 2–5 | 28.57% |
| Koumar vs Leo | 3–3 | 50.00% |
| Koumar vs Hwoarang | 2–3 | 40.00% |
| Koumar vs Dragunov | 4–1 | 80.00% |
| Koumar vs Jun | 1–4 | 20.00% |
| Koumar vs Victor | 2–3 | 40.00% |
| Koumar vs Xiaoyu | 0–4 | 0.00% |
| Koumar vs Jin | 1–3 | 25.00% |
| Koumar vs Asuka | 2–2 | 50.00% |
| Koumar vs Jack-8 | 3–0 | 100.00% |
| Koumar vs Nina | 0–3 | 0.00% |
| Koumar vs Lee | 1–2 | 33.33% |
| Koumar vs Paul | 0–2 | 0.00% |
| Koumar vs Azucena | 2–0 | 100.00% |
| Koumar vs Feng | 1–0 | 100.00% |
| Koumar vs Lili | 1–0 | 100.00% |
| Koumar vs Panda | 0–1 | 0.00% |
| Koumar vs Lars | 0–1 | 0.00% |
| Koumar vs Kuma | 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.