| Itachii vs Jin | 100–93 | 51.81% |
| Itachii vs Kazuya | 78–103 | 43.09% |
| Itachii vs Hwoarang | 43–90 | 32.33% |
| Itachii vs King | 67–61 | 52.34% |
| Itachii vs Law | 54–59 | 47.79% |
| Itachii vs Bryan | 53–43 | 55.21% |
| Itachii vs Yoshimitsu | 43–49 | 46.74% |
| Itachii vs Eddy | 45–44 | 50.56% |
| Itachii vs Fahkumram | 34–35 | 49.28% |
| Itachii vs Reina | 33–35 | 48.53% |
| Itachii vs Dragunov | 41–26 | 61.19% |
| Itachii vs Lili | 22–43 | 33.85% |
| Itachii vs Heihachi | 36–28 | 56.25% |
| Itachii vs Nina | 27–33 | 45.00% |
| Itachii vs Steve | 28–31 | 47.46% |
| Itachii vs Lars | 32–27 | 54.24% |
| Itachii vs Victor | 27–32 | 45.76% |
| Itachii vs Jun | 33–25 | 56.90% |
| Itachii vs Armor King | 21–32 | 39.62% |
| Itachii vs Paul | 19–30 | 38.78% |
| Itachii vs Xiaoyu | 14–31 | 31.11% |
| Itachii vs Alisa | 20–25 | 44.44% |
| Itachii vs Lee | 18–25 | 41.86% |
| Itachii vs Devil Jin | 19–23 | 45.24% |
| Itachii vs Asuka | 22–16 | 57.89% |
| Itachii vs Feng | 11–26 | 29.73% |
| Itachii vs Anna | 19–15 | 55.88% |
| Itachii vs Azucena | 17–16 | 51.52% |
| Itachii vs Clive | 11–14 | 44.00% |
| Itachii vs Leroy | 14–7 | 66.67% |
| Itachii vs Jack-8 | 8–11 | 42.11% |
| Itachii vs Lidia | 11–6 | 64.71% |
| Itachii vs Kuma | 7–9 | 43.75% |
| Itachii vs Zafina | 9–6 | 60.00% |
| Itachii vs Raven | 1–14 | 6.67% |
| Itachii vs Leo | 3–10 | 23.08% |
| Itachii vs Miary Zo | 4–7 | 36.36% |
| Itachii vs Claudio | 3–7 | 30.00% |
| Itachii vs Panda | 3–7 | 30.00% |
| Itachii vs Shaheen | 4–2 | 66.67% |
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.