| Koschi vs Heihachi | 11–10 | 52.38% |
| Koschi vs Dragunov | 8–9 | 47.06% |
| Koschi vs Kazuya | 7–7 | 50.00% |
| Koschi vs King | 10–3 | 76.92% |
| Koschi vs Reina | 8–4 | 66.67% |
| Koschi vs Steve | 9–2 | 81.82% |
| Koschi vs Paul | 5–5 | 50.00% |
| Koschi vs Yoshimitsu | 5–5 | 50.00% |
| Koschi vs Jin | 7–3 | 70.00% |
| Koschi vs Lidia | 6–3 | 66.67% |
| Koschi vs Asuka | 6–2 | 75.00% |
| Koschi vs Jun | 4–4 | 50.00% |
| Koschi vs Hwoarang | 5–2 | 71.43% |
| Koschi vs Xiaoyu | 6–1 | 85.71% |
| Koschi vs Lars | 4–2 | 66.67% |
| Koschi vs Kuma | 2–4 | 33.33% |
| Koschi vs Panda | 3–3 | 50.00% |
| Koschi vs Victor | 3–3 | 50.00% |
| Koschi vs Jack-8 | 4–1 | 80.00% |
| Koschi vs Alisa | 1–4 | 20.00% |
| Koschi vs Law | 1–3 | 25.00% |
| Koschi vs Devil Jin | 4–0 | 100.00% |
| Koschi vs Leo | 3–1 | 75.00% |
| Koschi vs Nina | 2–2 | 50.00% |
| Koschi vs Lee | 3–1 | 75.00% |
| Koschi vs Feng | 3–0 | 100.00% |
| Koschi vs Lili | 1–2 | 33.33% |
| Koschi vs Shaheen | 0–2 | 0.00% |
| Koschi vs Zafina | 2–0 | 100.00% |
| Koschi vs Leroy | 2–0 | 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.