| Itzcayan vs Reina | 26–10 | 72.22% |
| Itzcayan vs Jin | 17–16 | 51.52% |
| Itzcayan vs King | 16–16 | 50.00% |
| Itzcayan vs Heihachi | 11–15 | 42.31% |
| Itzcayan vs Steve | 8–9 | 47.06% |
| Itzcayan vs Yoshimitsu | 3–12 | 20.00% |
| Itzcayan vs Paul | 5–9 | 35.71% |
| Itzcayan vs Lidia | 8–5 | 61.54% |
| Itzcayan vs Kazuya | 5–7 | 41.67% |
| Itzcayan vs Hwoarang | 6–5 | 54.55% |
| Itzcayan vs Bryan | 5–6 | 45.45% |
| Itzcayan vs Leo | 6–4 | 60.00% |
| Itzcayan vs Victor | 3–7 | 30.00% |
| Itzcayan vs Lili | 5–4 | 55.56% |
| Itzcayan vs Dragunov | 3–6 | 33.33% |
| Itzcayan vs Lee | 6–3 | 66.67% |
| Itzcayan vs Clive | 5–4 | 55.56% |
| Itzcayan vs Asuka | 2–6 | 25.00% |
| Itzcayan vs Nina | 3–4 | 42.86% |
| Itzcayan vs Lars | 1–5 | 16.67% |
| Itzcayan vs Shaheen | 3–3 | 50.00% |
| Itzcayan vs Azucena | 3–3 | 50.00% |
| Itzcayan vs Raven | 2–4 | 33.33% |
| Itzcayan vs Anna | 4–2 | 66.67% |
| Itzcayan vs Devil Jin | 2–3 | 40.00% |
| Itzcayan vs Jun | 4–1 | 80.00% |
| Itzcayan vs Law | 0–4 | 0.00% |
| Itzcayan vs Eddy | 0–4 | 0.00% |
| Itzcayan vs Xiaoyu | 1–1 | 50.00% |
| Itzcayan vs Jack-8 | 0–2 | 0.00% |
| Itzcayan vs Feng | 0–2 | 0.00% |
| Itzcayan vs Kuma | 0–1 | 0.00% |
| Itzcayan 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.