| koi vs King | 47–48–1 | 49.47% |
| koi vs Bryan | 41–36 | 53.25% |
| koi vs Jin | 40–33 | 54.79% |
| koi vs Kazuya | 32–41 | 43.84% |
| koi vs Reina | 37–35 | 51.39% |
| koi vs Steve | 37–26 | 58.73% |
| koi vs Eddy | 13–40 | 24.53% |
| koi vs Jun | 28–23 | 54.90% |
| koi vs Dragunov | 28–22 | 56.00% |
| koi vs Law | 29–19 | 60.42% |
| koi vs Hwoarang | 33–14 | 70.21% |
| koi vs Lili | 24–19 | 55.81% |
| koi vs Lee | 16–24 | 40.00% |
| koi vs Azucena | 16–21 | 43.24% |
| koi vs Yoshimitsu | 16–20 | 44.44% |
| koi vs Paul | 10–25 | 28.57% |
| koi vs Victor | 18–16 | 52.94% |
| koi vs Xiaoyu | 13–16 | 44.83% |
| koi vs Asuka | 14–15 | 48.28% |
| koi vs Lars | 11–18 | 37.93% |
| koi vs Devil Jin | 12–14 | 46.15% |
| koi vs Leo | 14–12 | 53.85% |
| koi vs Nina | 16–10 | 61.54% |
| koi vs Feng | 8–12 | 40.00% |
| koi vs Leroy | 7–13 | 35.00% |
| koi vs Heihachi | 3–16 | 15.79% |
| koi vs Raven | 10–8 | 55.56% |
| koi vs Jack-8 | 5–10 | 33.33% |
| koi vs Clive | 9–5 | 64.29% |
| koi vs Alisa | 7–6 | 53.85% |
| koi vs Armor King | 6–7 | 46.15% |
| koi vs Lidia | 5–7 | 41.67% |
| koi vs Kuma | 3–8 | 27.27% |
| koi vs Claudio | 6–4 | 60.00% |
| koi vs Miary Zo | 6–4 | 60.00% |
| koi vs Shaheen | 2–6 | 25.00% |
| koi vs Fahkumram | 2–4 | 33.33% |
| koi vs Zafina | 2–3 | 40.00% |
| koi vs Panda | 0–4 | 0.00% |
| koi vs Anna | 2–1 | 66.67% |
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.