| Kopitar vs Hwoarang | 2–9 | 18.18% |
| Kopitar vs Devil Jin | 4–7 | 36.36% |
| Kopitar vs Lili | 8–2 | 80.00% |
| Kopitar vs Lars | 4–5 | 44.44% |
| Kopitar vs Victor | 2–6 | 25.00% |
| Kopitar vs Jin | 2–5 | 28.57% |
| Kopitar vs Alisa | 4–3 | 57.14% |
| Kopitar vs Reina | 3–4 | 42.86% |
| Kopitar vs Eddy | 4–3 | 57.14% |
| Kopitar vs King | 3–3 | 50.00% |
| Kopitar vs Steve | 2–4 | 33.33% |
| Kopitar vs Azucena | 1–4 | 20.00% |
| Kopitar vs Kazuya | 1–3 | 25.00% |
| Kopitar vs Jack-8 | 2–2 | 50.00% |
| Kopitar vs Asuka | 2–2 | 50.00% |
| Kopitar vs Leroy | 3–1 | 75.00% |
| Kopitar vs Law | 0–3 | 0.00% |
| Kopitar vs Feng | 0–3 | 0.00% |
| Kopitar vs Dragunov | 1–2 | 33.33% |
| Kopitar vs Jun | 2–1 | 66.67% |
| Kopitar vs Nina | 2–0 | 100.00% |
| Kopitar vs Zafina | 0–2 | 0.00% |
| Kopitar vs Paul | 1–0 | 100.00% |
| Kopitar vs Bryan | 1–0 | 100.00% |
| Kopitar vs Claudio | 1–0 | 100.00% |
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.