| IYA_ vs Jin | 11–32 | 25.58% |
| IYA_ vs Paul | 9–27 | 25.00% |
| IYA_ vs Reina | 8–28 | 22.22% |
| IYA_ vs Steve | 13–21 | 38.24% |
| IYA_ vs Bryan | 10–18 | 35.71% |
| IYA_ vs King | 12–12 | 50.00% |
| IYA_ vs Kazuya | 6–18 | 25.00% |
| IYA_ vs Miary Zo | 6–15 | 28.57% |
| IYA_ vs Law | 6–14 | 30.00% |
| IYA_ vs Asuka | 2–18 | 10.00% |
| IYA_ vs Victor | 3–16 | 15.79% |
| IYA_ vs Lili | 3–12 | 20.00% |
| IYA_ vs Hwoarang | 2–12 | 14.29% |
| IYA_ vs Devil Jin | 1–10 | 9.09% |
| IYA_ vs Fahkumram | 4–7 | 36.36% |
| IYA_ vs Armor King | 0–10 | 0.00% |
| IYA_ vs Lars | 1–8 | 11.11% |
| IYA_ vs Eddy | 2–7 | 22.22% |
| IYA_ vs Dragunov | 0–8 | 0.00% |
| IYA_ vs Lidia | 1–7 | 12.50% |
| IYA_ vs Alisa | 1–6 | 14.29% |
| IYA_ vs Nina | 1–6 | 14.29% |
| IYA_ vs Jun | 2–4 | 33.33% |
| IYA_ vs Heihachi | 3–3 | 50.00% |
| IYA_ vs Claudio | 2–3 | 40.00% |
| IYA_ vs Azucena | 2–3 | 40.00% |
| IYA_ vs Clive | 0–5 | 0.00% |
| IYA_ vs Yoshimitsu | 0–4 | 0.00% |
| IYA_ vs Leo | 0–4 | 0.00% |
| IYA_ vs Shaheen | 2–2 | 50.00% |
| IYA_ vs Zafina | 1–2 | 33.33% |
| IYA_ vs Xiaoyu | 0–2 | 0.00% |
| IYA_ vs Feng | 0–2 | 0.00% |
| IYA_ vs Kuma | 0–2 | 0.00% |
| IYA_ vs Leroy | 2–0 | 100.00% |
| IYA_ vs Anna | 0–2 | 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.