| IUDC vs Azucena | 9–4 | 69.23% |
| IUDC vs King | 8–3 | 72.73% |
| IUDC vs Hwoarang | 6–3 | 66.67% |
| IUDC vs Steve | 9–0 | 100.00% |
| IUDC vs Heihachi | 4–5 | 44.44% |
| IUDC vs Law | 2–6 | 25.00% |
| IUDC vs Asuka | 3–5 | 37.50% |
| IUDC vs Leo | 3–4 | 42.86% |
| IUDC vs Lars | 5–2 | 71.43% |
| IUDC vs Kazuya | 4–2 | 66.67% |
| IUDC vs Alisa | 4–2 | 66.67% |
| IUDC vs Armor King | 5–1 | 83.33% |
| IUDC vs Bryan | 4–1 | 80.00% |
| IUDC vs Reina | 0–4 | 0.00% |
| IUDC vs Eddy | 4–0 | 100.00% |
| IUDC vs Xiaoyu | 2–1 | 66.67% |
| IUDC vs Devil Jin | 2–1 | 66.67% |
| IUDC vs Dragunov | 3–0 | 100.00% |
| IUDC vs Lee | 3–0 | 100.00% |
| IUDC vs Kuma | 1–2 | 33.33% |
| IUDC vs Paul | 1–1 | 50.00% |
| IUDC vs Jack-8 | 2–0 | 100.00% |
| IUDC vs Lili | 2–0 | 100.00% |
| IUDC vs Leroy | 2–0 | 100.00% |
| IUDC vs Victor | 2–0 | 100.00% |
| IUDC vs Fahkumram | 2–0 | 100.00% |
| IUDC vs Feng | 1–0 | 100.00% |
| IUDC vs Nina | 0–1 | 0.00% |
| IUDC 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.