| Ittoryu vs Jin | 7–7 | 50.00% |
| Ittoryu vs Nina | 7–7 | 50.00% |
| Ittoryu vs Eddy | 8–6 | 57.14% |
| Ittoryu vs Paul | 6–7 | 46.15% |
| Ittoryu vs Steve | 10–3 | 76.92% |
| Ittoryu vs Dragunov | 8–5 | 61.54% |
| Ittoryu vs King | 2–10 | 16.67% |
| Ittoryu vs Lee | 4–5 | 44.44% |
| Ittoryu vs Lidia | 5–2 | 71.43% |
| Ittoryu vs Reina | 2–4 | 33.33% |
| Ittoryu vs Heihachi | 2–4 | 33.33% |
| Ittoryu vs Lili | 0–5 | 0.00% |
| Ittoryu vs Clive | 2–3 | 40.00% |
| Ittoryu vs Asuka | 2–2 | 50.00% |
| Ittoryu vs Azucena | 0–4 | 0.00% |
| Ittoryu vs Hwoarang | 2–1 | 66.67% |
| Ittoryu vs Bryan | 1–2 | 33.33% |
| Ittoryu vs Kazuya | 2–1 | 66.67% |
| Ittoryu vs Claudio | 3–0 | 100.00% |
| Ittoryu vs Jack-8 | 2–0 | 100.00% |
| Ittoryu vs Alisa | 2–0 | 100.00% |
| Ittoryu vs Zafina | 2–0 | 100.00% |
| Ittoryu vs Raven | 2–0 | 100.00% |
| Ittoryu vs Law | 1–0 | 100.00% |
| Ittoryu vs Yoshimitsu | 1–0 | 100.00% |
| Ittoryu vs Jun | 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.