| Koga vs Jin | 23–22 | 51.11% |
| Koga vs King | 23–19 | 54.76% |
| Koga vs Kazuya | 18–19 | 48.65% |
| Koga vs Yoshimitsu | 15–16 | 48.39% |
| Koga vs Hwoarang | 12–17 | 41.38% |
| Koga vs Victor | 11–18 | 37.93% |
| Koga vs Law | 14–13 | 51.85% |
| Koga vs Steve | 9–17 | 34.62% |
| Koga vs Lili | 8–16 | 33.33% |
| Koga vs Azucena | 11–13 | 45.83% |
| Koga vs Paul | 10–12 | 45.45% |
| Koga vs Bryan | 15–7 | 68.18% |
| Koga vs Reina | 9–12 | 42.86% |
| Koga vs Dragunov | 10–9 | 52.63% |
| Koga vs Nina | 6–13 | 31.58% |
| Koga vs Xiaoyu | 12–6 | 66.67% |
| Koga vs Asuka | 12–6 | 66.67% |
| Koga vs Lee | 7–10 | 41.18% |
| Koga vs Eddy | 11–6 | 64.71% |
| Koga vs Leroy | 10–5 | 66.67% |
| Koga vs Leo | 7–5 | 58.33% |
| Koga vs Lars | 10–2 | 83.33% |
| Koga vs Jun | 6–6 | 50.00% |
| Koga vs Devil Jin | 3–6 | 33.33% |
| Koga vs Feng | 2–6 | 25.00% |
| Koga vs Claudio | 4–3 | 57.14% |
| Koga vs Kuma | 6–1 | 85.71% |
| Koga vs Jack-8 | 0–6 | 0.00% |
| Koga vs Shaheen | 1–4 | 20.00% |
| Koga vs Raven | 2–3 | 40.00% |
| Koga vs Zafina | 2–1 | 66.67% |
| Koga vs Alisa | 1–1 | 50.00% |
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.