| King x Cosa vs Jin | 3–4 | 42.86% |
| King x Cosa vs Kazuya | 2–5 | 28.57% |
| King x Cosa vs Law | 3–3 | 50.00% |
| King x Cosa vs King | 3–3 | 50.00% |
| King x Cosa vs Steve | 2–4 | 33.33% |
| King x Cosa vs Yoshimitsu | 0–5 | 0.00% |
| King x Cosa vs Xiaoyu | 3–2 | 60.00% |
| King x Cosa vs Dragunov | 4–1 | 80.00% |
| King x Cosa vs Hwoarang | 0–4 | 0.00% |
| King x Cosa vs Bryan | 2–2 | 50.00% |
| King x Cosa vs Jack-8 | 4–0 | 100.00% |
| King x Cosa vs Lee | 1–3 | 25.00% |
| King x Cosa vs Asuka | 1–2 | 33.33% |
| King x Cosa vs Leo | 1–2 | 33.33% |
| King x Cosa vs Kuma | 1–2 | 33.33% |
| King x Cosa vs Reina | 2–1 | 66.67% |
| King x Cosa vs Eddy | 2–1 | 66.67% |
| King x Cosa vs Alisa | 2–0 | 100.00% |
| King x Cosa vs Leroy | 2–0 | 100.00% |
| King x Cosa vs Jun | 0–2 | 0.00% |
| King x Cosa vs Lidia | 2–0 | 100.00% |
| King x Cosa vs Heihachi | 1–1 | 50.00% |
| King x Cosa vs Devil Jin | 1–0 | 100.00% |
| King x Cosa vs Feng | 0–1 | 0.00% |
| King x Cosa vs Lili | 1–0 | 100.00% |
| King x Cosa vs Nina | 0–1 | 0.00% |
| King x Cosa vs Azucena | 1–0 | 100.00% |
| King x Cosa vs Raven | 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.