| iopuy vs Steve | 9–13 | 40.91% |
| iopuy vs Hwoarang | 2–17 | 10.53% |
| iopuy vs Reina | 8–9 | 47.06% |
| iopuy vs Bryan | 5–11 | 31.25% |
| iopuy vs King | 7–8 | 46.67% |
| iopuy vs Dragunov | 7–7 | 50.00% |
| iopuy vs Feng | 4–9 | 30.77% |
| iopuy vs Paul | 4–7 | 36.36% |
| iopuy vs Victor | 3–7 | 30.00% |
| iopuy vs Nina | 5–4 | 55.56% |
| iopuy vs Heihachi | 6–3 | 66.67% |
| iopuy vs Jin | 2–6 | 25.00% |
| iopuy vs Kazuya | 2–6 | 25.00% |
| iopuy vs Jun | 7–1 | 87.50% |
| iopuy vs Eddy | 2–5 | 28.57% |
| iopuy vs Lili | 6–1 | 85.71% |
| iopuy vs Azucena | 2–4 | 33.33% |
| iopuy vs Law | 1–4 | 20.00% |
| iopuy vs Xiaoyu | 1–4 | 20.00% |
| iopuy vs Jack-8 | 3–2 | 60.00% |
| iopuy vs Leroy | 3–2 | 60.00% |
| iopuy vs Devil Jin | 2–2 | 50.00% |
| iopuy vs Lee | 2–1 | 66.67% |
| iopuy vs Kuma | 1–2 | 33.33% |
| iopuy vs Leo | 2–0 | 100.00% |
| iopuy vs Alisa | 1–1 | 50.00% |
| iopuy vs Yoshimitsu | 1–1 | 50.00% |
| iopuy vs Asuka | 2–0 | 100.00% |
| iopuy vs Claudio | 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.