| Koppastoppa vs Reina | 11–1 | 91.67% |
| Koppastoppa vs Steve | 6–1 | 85.71% |
| Koppastoppa vs Kazuya | 6–0 | 100.00% |
| Koppastoppa vs Azucena | 6–0 | 100.00% |
| Koppastoppa vs Alisa | 4–1 | 80.00% |
| Koppastoppa vs Claudio | 3–1 | 75.00% |
| Koppastoppa vs Nina | 3–1 | 75.00% |
| Koppastoppa vs Jun | 3–1 | 75.00% |
| Koppastoppa vs Law | 3–0 | 100.00% |
| Koppastoppa vs Devil Jin | 2–1 | 66.67% |
| Koppastoppa vs Victor | 3–0 | 100.00% |
| Koppastoppa vs Lidia | 3–0 | 100.00% |
| Koppastoppa vs Clive | 2–1 | 66.67% |
| Koppastoppa vs King | 2–0 | 100.00% |
| Koppastoppa vs Xiaoyu | 1–1 | 50.00% |
| Koppastoppa vs Bryan | 2–0 | 100.00% |
| Koppastoppa vs Lili | 1–1 | 50.00% |
| Koppastoppa vs Yoshimitsu | 1–0 | 100.00% |
| Koppastoppa vs Leo | 1–0 | 100.00% |
| Koppastoppa vs Kuma | 1–0 | 100.00% |
| Koppastoppa vs Leroy | 1–0 | 100.00% |
| Koppastoppa vs Raven | 1–0 | 100.00% |
| Koppastoppa vs Eddy | 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.