| Cockroach vs King | 14–14 | 50.00% |
| Cockroach vs Jin | 14–13 | 51.85% |
| Cockroach vs Reina | 13–14 | 48.15% |
| Cockroach vs Steve | 16–7 | 69.57% |
| Cockroach vs Kazuya | 11–8 | 57.89% |
| Cockroach vs Victor | 12–7 | 63.16% |
| Cockroach vs Law | 8–8 | 50.00% |
| Cockroach vs Dragunov | 10–6 | 62.50% |
| Cockroach vs Lars | 7–8 | 46.67% |
| Cockroach vs Azucena | 10–5 | 66.67% |
| Cockroach vs Lili | 7–7 | 50.00% |
| Cockroach vs Nina | 8–6 | 57.14% |
| Cockroach vs Asuka | 6–4 | 60.00% |
| Cockroach vs Devil Jin | 7–3 | 70.00% |
| Cockroach vs Lee | 6–4 | 60.00% |
| Cockroach vs Leo | 3–6 | 33.33% |
| Cockroach vs Alisa | 2–7 | 22.22% |
| Cockroach vs Eddy | 3–6 | 33.33% |
| Cockroach vs Paul | 4–4 | 50.00% |
| Cockroach vs Yoshimitsu | 5–3 | 62.50% |
| Cockroach vs Fahkumram | 5–3 | 62.50% |
| Cockroach vs Hwoarang | 6–1 | 85.71% |
| Cockroach vs Leroy | 4–3 | 57.14% |
| Cockroach vs Claudio | 4–2 | 66.67% |
| Cockroach vs Kuma | 3–3 | 50.00% |
| Cockroach vs Raven | 6–0 | 100.00% |
| Cockroach vs Shaheen | 4–1 | 80.00% |
| Cockroach vs Jun | 2–3 | 40.00% |
| Cockroach vs Xiaoyu | 1–3 | 25.00% |
| Cockroach vs Bryan | 1–3 | 25.00% |
| Cockroach vs Jack-8 | 1–3 | 25.00% |
| Cockroach vs Feng | 2–1 | 66.67% |
| Cockroach vs Lidia | 2–1 | 66.67% |
| Cockroach vs Zafina | 1–1 | 50.00% |
| Cockroach vs Heihachi | 2–0 | 100.00% |
| Cockroach vs Panda | 1–0 | 100.00% |
| Cockroach vs Clive | 0–1 | 0.00% |
| Cockroach vs Anna | 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.