| Kos-buster vs Kazuya | 28–24 | 53.85% |
| Kos-buster vs Jin | 17–10 | 62.96% |
| Kos-buster vs Heihachi | 14–13 | 51.85% |
| Kos-buster vs Eddy | 9–15 | 37.50% |
| Kos-buster vs Reina | 14–8 | 63.64% |
| Kos-buster vs King | 12–8 | 60.00% |
| Kos-buster vs Hwoarang | 9–10 | 47.37% |
| Kos-buster vs Steve | 13–6 | 68.42% |
| Kos-buster vs Law | 10–7 | 58.82% |
| Kos-buster vs Jun | 8–8 | 50.00% |
| Kos-buster vs Lidia | 7–9 | 43.75% |
| Kos-buster vs Asuka | 6–7 | 46.15% |
| Kos-buster vs Lars | 2–10 | 16.67% |
| Kos-buster vs Devil Jin | 6–5 | 54.55% |
| Kos-buster vs Dragunov | 8–3 | 72.73% |
| Kos-buster vs Paul | 6–4 | 60.00% |
| Kos-buster vs Xiaoyu | 6–4 | 60.00% |
| Kos-buster vs Bryan | 5–5 | 50.00% |
| Kos-buster vs Lili | 5–5 | 50.00% |
| Kos-buster vs Azucena | 4–6 | 40.00% |
| Kos-buster vs Nina | 6–3 | 66.67% |
| Kos-buster vs Victor | 2–6 | 25.00% |
| Kos-buster vs Claudio | 4–3 | 57.14% |
| Kos-buster vs Yoshimitsu | 3–3 | 50.00% |
| Kos-buster vs Leo | 2–4 | 33.33% |
| Kos-buster vs Kuma | 1–5 | 16.67% |
| Kos-buster vs Feng | 2–3 | 40.00% |
| Kos-buster vs Leroy | 3–2 | 60.00% |
| Kos-buster vs Jack-8 | 0–3 | 0.00% |
| Kos-buster vs Alisa | 1–2 | 33.33% |
| Kos-buster vs Zafina | 1–2 | 33.33% |
| Kos-buster vs Lee | 0–2 | 0.00% |
| Kos-buster vs Miary Zo | 0–2 | 0.00% |
| Kos-buster vs Shaheen | 1–0 | 100.00% |
| Kos-buster vs Clive | 0–1 | 0.00% |
| Kos-buster vs Armor King | 1–0 | 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.