| Koparnikus vs Kazuya | 13–11 | 54.17% |
| Koparnikus vs Steve | 10–7 | 58.82% |
| Koparnikus vs Hwoarang | 9–3 | 75.00% |
| Koparnikus vs Jun | 9–3 | 75.00% |
| Koparnikus vs Reina | 9–3 | 75.00% |
| Koparnikus vs Jin | 5–6 | 45.45% |
| Koparnikus vs Bryan | 3–8 | 27.27% |
| Koparnikus vs King | 7–3 | 70.00% |
| Koparnikus vs Yoshimitsu | 7–1 | 87.50% |
| Koparnikus vs Lili | 4–4 | 50.00% |
| Koparnikus vs Eddy | 3–5 | 37.50% |
| Koparnikus vs Lars | 5–1 | 83.33% |
| Koparnikus vs Kuma | 6–0 | 100.00% |
| Koparnikus vs Law | 5–0 | 100.00% |
| Koparnikus vs Xiaoyu | 3–2 | 60.00% |
| Koparnikus vs Claudio | 1–4 | 20.00% |
| Koparnikus vs Lee | 3–2 | 60.00% |
| Koparnikus vs Shaheen | 2–2 | 50.00% |
| Koparnikus vs Victor | 0–4 | 0.00% |
| Koparnikus vs Devil Jin | 2–1 | 66.67% |
| Koparnikus vs Feng | 2–1 | 66.67% |
| Koparnikus vs Leo | 1–2 | 33.33% |
| Koparnikus vs Paul | 2–0 | 100.00% |
| Koparnikus vs Asuka | 2–0 | 100.00% |
| Koparnikus vs Dragunov | 2–0 | 100.00% |
| Koparnikus vs Panda | 2–0 | 100.00% |
| Koparnikus vs Lidia | 0–2 | 0.00% |
| Koparnikus vs Nina | 0–1 | 0.00% |
| Koparnikus vs Azucena | 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.