| Itoku vs Reina | 17–7 | 70.83% |
| Itoku vs King | 8–9 | 47.06% |
| Itoku vs Lili | 7–9 | 43.75% |
| Itoku vs Steve | 3–11 | 21.43% |
| Itoku vs Eddy | 3–10 | 23.08% |
| Itoku vs Yoshimitsu | 5–3 | 62.50% |
| Itoku vs Kazuya | 3–5 | 37.50% |
| Itoku vs Claudio | 2–6 | 25.00% |
| Itoku vs Jin | 3–3 | 50.00% |
| Itoku vs Lee | 3–3 | 50.00% |
| Itoku vs Victor | 2–4 | 33.33% |
| Itoku vs Law | 3–2 | 60.00% |
| Itoku vs Hwoarang | 2–3 | 40.00% |
| Itoku vs Feng | 3–2 | 60.00% |
| Itoku vs Dragunov | 3–2 | 60.00% |
| Itoku vs Lars | 2–2 | 50.00% |
| Itoku vs Shaheen | 3–1 | 75.00% |
| Itoku vs Nina | 0–4 | 0.00% |
| Itoku vs Jun | 0–4 | 0.00% |
| Itoku vs Xiaoyu | 0–3 | 0.00% |
| Itoku vs Asuka | 3–0 | 100.00% |
| Itoku vs Devil Jin | 2–1 | 66.67% |
| Itoku vs Paul | 1–1 | 50.00% |
| Itoku vs Bryan | 0–2 | 0.00% |
| Itoku vs Leo | 0–2 | 0.00% |
| Itoku vs Alisa | 0–2 | 0.00% |
| Itoku vs Zafina | 1–1 | 50.00% |
| Itoku vs Leroy | 0–1 | 0.00% |
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.