| Koo_C vs Hwoarang | 272–198 | 57.87% |
| Koo_C vs Bryan | 232–223 | 50.99% |
| Koo_C vs Dragunov | 217–203 | 51.67% |
| Koo_C vs Kazuya | 209–165 | 55.88% |
| Koo_C vs Asuka | 200–156 | 56.18% |
| Koo_C vs Steve | 154–169 | 47.68% |
| Koo_C vs Jin | 160–162 | 49.69% |
| Koo_C vs King | 153–159 | 49.04% |
| Koo_C vs Paul | 148–135 | 52.30% |
| Koo_C vs Reina | 121–140–1 | 46.36% |
| Koo_C vs Lars | 110–109 | 50.23% |
| Koo_C vs Lili | 105–105 | 50.00% |
| Koo_C vs Heihachi | 110–97 | 53.14% |
| Koo_C vs Law | 94–112 | 45.63% |
| Koo_C vs Jack-8 | 110–95 | 53.66% |
| Koo_C vs Eddy | 115–90 | 56.10% |
| Koo_C vs Devil Jin | 106–97 | 52.22% |
| Koo_C vs Jun | 105–96 | 52.24% |
| Koo_C vs Victor | 85–114 | 42.71% |
| Koo_C vs Xiaoyu | 95–99 | 48.97% |
| Koo_C vs Fahkumram | 92–101 | 47.67% |
| Koo_C vs Leroy | 90–101 | 47.12% |
| Koo_C vs Alisa | 77–110 | 41.18% |
| Koo_C vs Lee | 80–107 | 42.78% |
| Koo_C vs Yoshimitsu | 84–102 | 45.16% |
| Koo_C vs Feng | 97–83 | 53.89% |
| Koo_C vs Raven | 83–92 | 47.43% |
| Koo_C vs Claudio | 79–94 | 45.66% |
| Koo_C vs Azucena | 79–77 | 50.64% |
| Koo_C vs Lidia | 90–65 | 58.06% |
| Koo_C vs Armor King | 67–85 | 44.08% |
| Koo_C vs Clive | 66–80 | 45.21% |
| Koo_C vs Shaheen | 67–77 | 46.53% |
| Koo_C vs Nina | 60–84 | 41.67% |
| Koo_C vs Leo | 72–64–1 | 52.94% |
| Koo_C vs Kuma | 64–54 | 54.24% |
| Koo_C vs Zafina | 61–48 | 55.96% |
| Koo_C vs Anna | 37–38 | 49.33% |
| Koo_C vs Panda | 27–29 | 48.21% |
| Koo_C vs Miary Zo | 17–24 | 41.46% |
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.