| Kotar vs Reina | 8–11 | 42.11% |
| Kotar vs Steve | 8–6 | 57.14% |
| Kotar vs Eddy | 7–7 | 50.00% |
| Kotar vs Jin | 6–7 | 46.15% |
| Kotar vs Claudio | 6–7 | 46.15% |
| Kotar vs Hwoarang | 8–4 | 66.67% |
| Kotar vs Devil Jin | 6–6 | 50.00% |
| Kotar vs Jun | 7–5 | 58.33% |
| Kotar vs Bryan | 6–4 | 60.00% |
| Kotar vs Xiaoyu | 6–3 | 66.67% |
| Kotar vs Azucena | 1–8 | 11.11% |
| Kotar vs King | 6–1 | 85.71% |
| Kotar vs Kazuya | 1–6 | 14.29% |
| Kotar vs Asuka | 6–1 | 85.71% |
| Kotar vs Lars | 2–5 | 28.57% |
| Kotar vs Alisa | 1–6 | 14.29% |
| Kotar vs Leo | 2–4 | 33.33% |
| Kotar vs Law | 3–2 | 60.00% |
| Kotar vs Yoshimitsu | 0–5 | 0.00% |
| Kotar vs Feng | 1–4 | 20.00% |
| Kotar vs Leroy | 2–2 | 50.00% |
| Kotar vs Lili | 1–2 | 33.33% |
| Kotar vs Paul | 2–0 | 100.00% |
| Kotar vs Jack-8 | 2–0 | 100.00% |
| Kotar vs Shaheen | 2–0 | 100.00% |
| Kotar vs Nina | 0–2 | 0.00% |
| Kotar vs Lee | 0–2 | 0.00% |
| Kotar vs Dragunov | 1–0 | 100.00% |
| Kotar vs Kuma | 0–1 | 0.00% |
| Kotar vs Victor | 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.