| kotaro vs Kazuya | 205–305 | 40.20% |
| kotaro vs Jin | 136–227 | 37.47% |
| kotaro vs King | 136–216 | 38.64% |
| kotaro vs Reina | 141–191 | 42.47% |
| kotaro vs Paul | 95–191 | 33.22% |
| kotaro vs Bryan | 96–187 | 33.92% |
| kotaro vs Dragunov | 92–185 | 33.21% |
| kotaro vs Lili | 86–167 | 33.99% |
| kotaro vs Asuka | 77–154 | 33.33% |
| kotaro vs Hwoarang | 64–157 | 28.96% |
| kotaro vs Clive | 81–136 | 37.33% |
| kotaro vs Law | 58–144 | 28.71% |
| kotaro vs Yoshimitsu | 62–140 | 30.69% |
| kotaro vs Steve | 71–130 | 35.32% |
| kotaro vs Armor King | 58–141 | 29.15% |
| kotaro vs Heihachi | 76–122 | 38.38% |
| kotaro vs Jun | 58–107 | 35.15% |
| kotaro vs Devil Jin | 53–100 | 34.64% |
| kotaro vs Fahkumram | 50–100 | 33.33% |
| kotaro vs Azucena | 54–94 | 36.49% |
| kotaro vs Victor | 50–93 | 34.97% |
| kotaro vs Claudio | 35–104 | 25.18% |
| kotaro vs Lidia | 45–79 | 36.29% |
| kotaro vs Xiaoyu | 45–73 | 38.14% |
| kotaro vs Miary Zo | 42–65 | 39.25% |
| kotaro vs Leo | 44–62 | 41.51% |
| kotaro vs Alisa | 27–79 | 25.47% |
| kotaro vs Lee | 41–65 | 38.68% |
| kotaro vs Eddy | 36–64 | 36.00% |
| kotaro vs Nina | 42–57 | 42.42% |
| kotaro vs Lars | 31–65 | 32.29% |
| kotaro vs Anna | 40–44 | 47.62% |
| kotaro vs Feng | 28–54 | 34.15% |
| kotaro vs Kuma | 25–55 | 31.25% |
| kotaro vs Leroy | 21–49 | 30.00% |
| kotaro vs Jack-8 | 29–37 | 43.94% |
| kotaro vs Shaheen | 23–39 | 37.10% |
| kotaro vs Panda | 16–26 | 38.10% |
| kotaro vs Raven | 10–32 | 23.81% |
| kotaro vs Zafina | 7–21 | 25.00% |
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.