| Mckoy vs Steve | 11–4 | 73.33% |
| Mckoy vs Paul | 1–8 | 11.11% |
| Mckoy vs Dragunov | 5–3 | 62.50% |
| Mckoy vs Reina | 7–1 | 87.50% |
| Mckoy vs King | 3–2 | 60.00% |
| Mckoy vs Lili | 4–1 | 80.00% |
| Mckoy vs Xiaoyu | 3–1 | 75.00% |
| Mckoy vs Yoshimitsu | 1–2 | 33.33% |
| Mckoy vs Victor | 1–2 | 33.33% |
| Mckoy vs Heihachi | 1–2 | 33.33% |
| Mckoy vs Hwoarang | 2–0 | 100.00% |
| Mckoy vs Kazuya | 0–2 | 0.00% |
| Mckoy vs Asuka | 2–0 | 100.00% |
| Mckoy vs Lars | 2–0 | 100.00% |
| Mckoy vs Shaheen | 2–0 | 100.00% |
| Mckoy vs Nina | 2–0 | 100.00% |
| Mckoy vs Lidia | 2–0 | 100.00% |
| Mckoy vs Jin | 1–0 | 100.00% |
| Mckoy vs Bryan | 1–0 | 100.00% |
| Mckoy vs Alisa | 1–0 | 100.00% |
| Mckoy vs Jun | 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.