| ioioi vs Dragunov | 63–47–1 | 57.27% |
| ioioi vs Kazuya | 57–53 | 51.82% |
| ioioi vs Hwoarang | 44–56 | 44.00% |
| ioioi vs King | 51–48 | 51.52% |
| ioioi vs Paul | 63–35 | 64.29% |
| ioioi vs Bryan | 57–34 | 62.64% |
| ioioi vs Jin | 45–42 | 51.72% |
| ioioi vs Reina | 48–36 | 57.14% |
| ioioi vs Lili | 32–43 | 42.67% |
| ioioi vs Asuka | 44–29 | 60.27% |
| ioioi vs Yoshimitsu | 30–34 | 46.88% |
| ioioi vs Feng | 33–23 | 58.93% |
| ioioi vs Fahkumram | 28–25 | 52.83% |
| ioioi vs Claudio | 33–16 | 67.35% |
| ioioi vs Steve | 22–25 | 46.81% |
| ioioi vs Lidia | 27–20 | 57.45% |
| ioioi vs Law | 26–20 | 56.52% |
| ioioi vs Jun | 25–18 | 58.14% |
| ioioi vs Victor | 21–22 | 48.84% |
| ioioi vs Azucena | 21–21 | 50.00% |
| ioioi vs Heihachi | 17–24 | 41.46% |
| ioioi vs Devil Jin | 17–23 | 42.50% |
| ioioi vs Lars | 14–26 | 35.00% |
| ioioi vs Alisa | 23–16 | 58.97% |
| ioioi vs Lee | 29–9 | 76.32% |
| ioioi vs Leo | 16–19 | 45.71% |
| ioioi vs Nina | 15–17 | 46.88% |
| ioioi vs Leroy | 12–19 | 38.71% |
| ioioi vs Eddy | 11–17 | 39.29% |
| ioioi vs Jack-8 | 16–9 | 64.00% |
| ioioi vs Clive | 13–12 | 52.00% |
| ioioi vs Xiaoyu | 10–14 | 41.67% |
| ioioi vs Raven | 9–14 | 39.13% |
| ioioi vs Shaheen | 11–10 | 52.38% |
| ioioi vs Anna | 8–10 | 44.44% |
| ioioi vs Armor King | 8–9 | 47.06% |
| ioioi vs Miary Zo | 11–6 | 64.71% |
| ioioi vs Kuma | 6–9 | 40.00% |
| ioioi vs Panda | 4–7 | 36.36% |
| ioioi vs Zafina | 5–6 | 45.45% |
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.