| Itachi Uchiha vs Law | 10–10 | 50.00% |
| Itachi Uchiha vs Kazuya | 10–5 | 66.67% |
| Itachi Uchiha vs Heihachi | 9–6 | 60.00% |
| Itachi Uchiha vs Paul | 7–7 | 50.00% |
| Itachi Uchiha vs Hwoarang | 8–6 | 57.14% |
| Itachi Uchiha vs Eddy | 9–5 | 64.29% |
| Itachi Uchiha vs Reina | 4–7 | 36.36% |
| Itachi Uchiha vs Jin | 6–4 | 60.00% |
| Itachi Uchiha vs Steve | 4–6 | 40.00% |
| Itachi Uchiha vs King | 5–4 | 55.56% |
| Itachi Uchiha vs Yoshimitsu | 8–1 | 88.89% |
| Itachi Uchiha vs Asuka | 7–2 | 77.78% |
| Itachi Uchiha vs Lili | 5–4 | 55.56% |
| Itachi Uchiha vs Victor | 6–1 | 85.71% |
| Itachi Uchiha vs Jack-8 | 4–2 | 66.67% |
| Itachi Uchiha vs Bryan | 1–4 | 20.00% |
| Itachi Uchiha vs Feng | 1–4 | 20.00% |
| Itachi Uchiha vs Lars | 3–2 | 60.00% |
| Itachi Uchiha vs Lee | 3–1 | 75.00% |
| Itachi Uchiha vs Jun | 2–2 | 50.00% |
| Itachi Uchiha vs Azucena | 2–2 | 50.00% |
| Itachi Uchiha vs Devil Jin | 2–2 | 50.00% |
| Itachi Uchiha vs Xiaoyu | 1–2 | 33.33% |
| Itachi Uchiha vs Dragunov | 2–1 | 66.67% |
| Itachi Uchiha vs Claudio | 1–2 | 33.33% |
| Itachi Uchiha vs Nina | 1–2 | 33.33% |
| Itachi Uchiha vs Kuma | 0–3 | 0.00% |
| Itachi Uchiha vs Alisa | 0–2 | 0.00% |
| Itachi Uchiha vs Leroy | 1–0 | 100.00% |
| Itachi Uchiha vs Lidia | 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.