| ioncy vs Kazuya | 10–20 | 33.33% |
| ioncy vs Jin | 17–12 | 58.62% |
| ioncy vs Dragunov | 7–19 | 26.92% |
| ioncy vs King | 10–11 | 47.62% |
| ioncy vs Victor | 11–10 | 52.38% |
| ioncy vs Law | 5–13 | 27.78% |
| ioncy vs Devil Jin | 6–12 | 33.33% |
| ioncy vs Lili | 10–7 | 58.82% |
| ioncy vs Steve | 7–9 | 43.75% |
| ioncy vs Reina | 11–4 | 73.33% |
| ioncy vs Paul | 2–12 | 14.29% |
| ioncy vs Jun | 7–7 | 50.00% |
| ioncy vs Leo | 4–9 | 30.77% |
| ioncy vs Claudio | 7–6 | 53.85% |
| ioncy vs Yoshimitsu | 6–6 | 50.00% |
| ioncy vs Bryan | 3–8 | 27.27% |
| ioncy vs Alisa | 2–9 | 18.18% |
| ioncy vs Lidia | 4–7 | 36.36% |
| ioncy vs Asuka | 4–6 | 40.00% |
| ioncy vs Feng | 2–6 | 25.00% |
| ioncy vs Leroy | 6–2 | 75.00% |
| ioncy vs Eddy | 4–4 | 50.00% |
| ioncy vs Hwoarang | 4–3 | 57.14% |
| ioncy vs Xiaoyu | 1–5 | 16.67% |
| ioncy vs Nina | 2–3 | 40.00% |
| ioncy vs Lee | 1–3 | 25.00% |
| ioncy vs Azucena | 1–3 | 25.00% |
| ioncy vs Raven | 0–4 | 0.00% |
| ioncy vs Kuma | 1–2 | 33.33% |
| ioncy vs Lars | 0–2 | 0.00% |
| ioncy vs Armor King | 0–2 | 0.00% |
| ioncy vs Miary Zo | 2–0 | 100.00% |
| ioncy vs Panda | 1–0 | 100.00% |
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.