| Koosmu vs Dragunov | 13–7 | 65.00% |
| Koosmu vs King | 13–5–1 | 72.22% |
| Koosmu vs Jin | 15–3 | 83.33% |
| Koosmu vs Lars | 15–2 | 88.24% |
| Koosmu vs Hwoarang | 12–4 | 75.00% |
| Koosmu vs Lili | 9–7 | 56.25% |
| Koosmu vs Reina | 11–5 | 68.75% |
| Koosmu vs Steve | 12–3 | 80.00% |
| Koosmu vs Eddy | 10–5 | 66.67% |
| Koosmu vs Kazuya | 10–3 | 76.92% |
| Koosmu vs Lidia | 8–5 | 61.54% |
| Koosmu vs Devil Jin | 9–3 | 75.00% |
| Koosmu vs Bryan | 8–3 | 72.73% |
| Koosmu vs Yoshimitsu | 7–3 | 70.00% |
| Koosmu vs Jun | 8–2 | 80.00% |
| Koosmu vs Victor | 8–2 | 80.00% |
| Koosmu vs Clive | 8–1 | 88.89% |
| Koosmu vs Heihachi | 5–3 | 62.50% |
| Koosmu vs Law | 5–2 | 71.43% |
| Koosmu vs Claudio | 6–1 | 85.71% |
| Koosmu vs Nina | 5–2 | 71.43% |
| Koosmu vs Lee | 3–4 | 42.86% |
| Koosmu vs Xiaoyu | 4–1 | 80.00% |
| Koosmu vs Leo | 4–1 | 80.00% |
| Koosmu vs Leroy | 4–1 | 80.00% |
| Koosmu vs Paul | 4–0 | 100.00% |
| Koosmu vs Jack-8 | 1–3 | 25.00% |
| Koosmu vs Alisa | 4–0 | 100.00% |
| Koosmu vs Anna | 4–0 | 100.00% |
| Koosmu vs Feng | 3–0 | 100.00% |
| Koosmu vs Fahkumram | 2–1 | 66.67% |
| Koosmu vs Shaheen | 2–0 | 100.00% |
| Koosmu vs Kuma | 1–1 | 50.00% |
| Koosmu vs Raven | 2–0 | 100.00% |
| Koosmu vs Armor King | 2–0 | 100.00% |
| Koosmu vs Asuka | 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.