| koiboi vs Hwoarang | 267–276 | 49.17% |
| koiboi vs Kazuya | 270–261 | 50.85% |
| koiboi vs Bryan | 219–309 | 41.48% |
| koiboi vs Dragunov | 215–263 | 44.98% |
| koiboi vs King | 243–227 | 51.70% |
| koiboi vs Jin | 194–268 | 41.99% |
| koiboi vs Paul | 185–197 | 48.43% |
| koiboi vs Law | 197–155 | 55.97% |
| koiboi vs Asuka | 180–167 | 51.87% |
| koiboi vs Reina | 164–173 | 48.66% |
| koiboi vs Steve | 181–145 | 55.52% |
| koiboi vs Yoshimitsu | 135–169 | 44.41% |
| koiboi vs Lars | 136–144 | 48.57% |
| koiboi vs Lili | 125–146 | 46.13% |
| koiboi vs Feng | 132–136 | 49.25% |
| koiboi vs Jack-8 | 116–145 | 44.44% |
| koiboi vs Lee | 121–126 | 48.99% |
| koiboi vs Devil Jin | 107–139 | 43.50% |
| koiboi vs Victor | 132–109 | 54.77% |
| koiboi vs Nina | 97–130 | 42.73% |
| koiboi vs Xiaoyu | 117–108 | 52.00% |
| koiboi vs Azucena | 95–104 | 47.74% |
| koiboi vs Heihachi | 92–106 | 46.46% |
| koiboi vs Leroy | 93–104 | 47.21% |
| koiboi vs Jun | 106–90 | 54.08% |
| koiboi vs Leo | 74–119 | 38.34% |
| koiboi vs Alisa | 97–95 | 50.52% |
| koiboi vs Eddy | 93–99 | 48.44% |
| koiboi vs Lidia | 92–99 | 48.17% |
| koiboi vs Claudio | 83–107 | 43.68% |
| koiboi vs Raven | 65–107 | 37.79% |
| koiboi vs Fahkumram | 99–73 | 57.56% |
| koiboi vs Anna | 75–76 | 49.67% |
| koiboi vs Armor King | 64–82 | 43.84% |
| koiboi vs Shaheen | 45–75 | 37.50% |
| koiboi vs Clive | 48–72 | 40.00% |
| koiboi vs Zafina | 58–38 | 60.42% |
| koiboi vs Kuma | 47–43 | 52.22% |
| koiboi vs Miary Zo | 33–51 | 39.29% |
| koiboi vs Panda | 29–28 | 50.88% |
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.