| Illuya vs King | 7–18 | 28.00% |
| Illuya vs Kazuya | 9–10 | 47.37% |
| Illuya vs Lili | 3–10 | 23.08% |
| Illuya vs Reina | 6–7 | 46.15% |
| Illuya vs Jun | 7–5 | 58.33% |
| Illuya vs Asuka | 2–7 | 22.22% |
| Illuya vs Azucena | 6–3 | 66.67% |
| Illuya vs Jin | 2–6 | 25.00% |
| Illuya vs Feng | 6–2 | 75.00% |
| Illuya vs Hwoarang | 2–5 | 28.57% |
| Illuya vs Alisa | 1–6 | 14.29% |
| Illuya vs Yoshimitsu | 0–5 | 0.00% |
| Illuya vs Steve | 1–4 | 20.00% |
| Illuya vs Leo | 2–3 | 40.00% |
| Illuya vs Law | 1–3 | 25.00% |
| Illuya vs Lee | 4–0 | 100.00% |
| Illuya vs Xiaoyu | 0–3 | 0.00% |
| Illuya vs Jack-8 | 1–2 | 33.33% |
| Illuya vs Dragunov | 0–3 | 0.00% |
| Illuya vs Nina | 1–2 | 33.33% |
| Illuya vs Victor | 1–2 | 33.33% |
| Illuya vs Eddy | 1–2 | 33.33% |
| Illuya vs Kuma | 0–2 | 0.00% |
| Illuya vs Zafina | 1–1 | 50.00% |
| Illuya vs Raven | 0–2 | 0.00% |
| Illuya vs Paul | 0–1 | 0.00% |
| Illuya vs Bryan | 0–1 | 0.00% |
| Illuya vs Devil Jin | 0–1 | 0.00% |
| Illuya vs Claudio | 0–1 | 0.00% |
| Illuya vs Shaheen | 0–1 | 0.00% |
| Illuya vs Panda | 1–0 | 100.00% |
| Illuya 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.