| Kotetsu vs Lidia | 45–92 | 32.85% |
| Kotetsu vs Reina | 56–71 | 44.09% |
| Kotetsu vs Kazuya | 60–51 | 54.05% |
| Kotetsu vs Dragunov | 48–60 | 44.44% |
| Kotetsu vs Asuka | 48–45–1 | 51.61% |
| Kotetsu vs Jin | 42–49 | 46.15% |
| Kotetsu vs Paul | 40–41 | 49.38% |
| Kotetsu vs Bryan | 28–46 | 37.84% |
| Kotetsu vs Victor | 37–36 | 50.68% |
| Kotetsu vs Hwoarang | 24–40 | 37.50% |
| Kotetsu vs Heihachi | 29–35 | 45.31% |
| Kotetsu vs King | 36–27 | 57.14% |
| Kotetsu vs Clive | 28–34 | 45.16% |
| Kotetsu vs Alisa | 21–35 | 37.50% |
| Kotetsu vs Lili | 29–26 | 52.73% |
| Kotetsu vs Jun | 28–26 | 51.85% |
| Kotetsu vs Xiaoyu | 30–17 | 63.83% |
| Kotetsu vs Azucena | 21–26 | 44.68% |
| Kotetsu vs Law | 24–18 | 57.14% |
| Kotetsu vs Leo | 27–15 | 64.29% |
| Kotetsu vs Yoshimitsu | 15–22 | 40.54% |
| Kotetsu vs Devil Jin | 14–19 | 42.42% |
| Kotetsu vs Eddy | 16–16 | 50.00% |
| Kotetsu vs Nina | 14–17 | 45.16% |
| Kotetsu vs Steve | 11–19 | 36.67% |
| Kotetsu vs Feng | 10–19 | 34.48% |
| Kotetsu vs Lee | 9–13 | 40.91% |
| Kotetsu vs Lars | 8–7 | 53.33% |
| Kotetsu vs Claudio | 7–8 | 46.67% |
| Kotetsu vs Leroy | 6–8 | 42.86% |
| Kotetsu vs Jack-8 | 6–6 | 50.00% |
| Kotetsu vs Kuma | 6–6 | 50.00% |
| Kotetsu vs Panda | 4–8 | 33.33% |
| Kotetsu vs Shaheen | 4–7 | 36.36% |
| Kotetsu vs Zafina | 5–6 | 45.45% |
| Kotetsu vs Raven | 2–4 | 33.33% |
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.