| ITonio vs Jin | 16–17 | 48.48% |
| ITonio vs Reina | 19–12 | 61.29% |
| ITonio vs King | 12–15 | 44.44% |
| ITonio vs Jun | 20–6 | 76.92% |
| ITonio vs Hwoarang | 14–10 | 58.33% |
| ITonio vs Kazuya | 14–10 | 58.33% |
| ITonio vs Eddy | 9–15 | 37.50% |
| ITonio vs Bryan | 11–12 | 47.83% |
| ITonio vs Azucena | 14–8 | 63.64% |
| ITonio vs Steve | 8–12 | 40.00% |
| ITonio vs Yoshimitsu | 12–7 | 63.16% |
| ITonio vs Devil Jin | 6–9 | 40.00% |
| ITonio vs Nina | 5–10 | 33.33% |
| ITonio vs Victor | 5–8 | 38.46% |
| ITonio vs Asuka | 6–6 | 50.00% |
| ITonio vs Law | 7–4 | 63.64% |
| ITonio vs Lili | 3–8 | 27.27% |
| ITonio vs Dragunov | 5–6 | 45.45% |
| ITonio vs Paul | 2–8 | 20.00% |
| ITonio vs Leo | 5–4 | 55.56% |
| ITonio vs Alisa | 4–5 | 44.44% |
| ITonio vs Lee | 5–4 | 55.56% |
| ITonio vs Xiaoyu | 1–7 | 12.50% |
| ITonio vs Jack-8 | 3–5 | 37.50% |
| ITonio vs Lars | 3–5 | 37.50% |
| ITonio vs Leroy | 3–4 | 42.86% |
| ITonio vs Kuma | 0–6 | 0.00% |
| ITonio vs Feng | 1–4 | 20.00% |
| ITonio vs Zafina | 4–1 | 80.00% |
| ITonio vs Claudio | 2–2 | 50.00% |
| ITonio vs Shaheen | 0–4 | 0.00% |
| ITonio vs Panda | 2–0 | 100.00% |
| ITonio vs Raven | 2–0 | 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.