| iobg vs Reina | 8–11 | 42.11% |
| iobg vs Eddy | 7–12 | 36.84% |
| iobg vs King | 10–8 | 55.56% |
| iobg vs Jin | 4–9 | 30.77% |
| iobg vs Xiaoyu | 1–10 | 9.09% |
| iobg vs Steve | 8–3 | 72.73% |
| iobg vs Dragunov | 3–8 | 27.27% |
| iobg vs Bryan | 4–6 | 40.00% |
| iobg vs Victor | 4–6 | 40.00% |
| iobg vs Hwoarang | 5–4 | 55.56% |
| iobg vs Lee | 2–7 | 22.22% |
| iobg vs Feng | 3–5 | 37.50% |
| iobg vs Lili | 4–4 | 50.00% |
| iobg vs Yoshimitsu | 3–4 | 42.86% |
| iobg vs Kazuya | 1–5 | 16.67% |
| iobg vs Azucena | 1–5 | 16.67% |
| iobg vs Nina | 2–2 | 50.00% |
| iobg vs Leroy | 3–1 | 75.00% |
| iobg vs Paul | 1–2 | 33.33% |
| iobg vs Lars | 1–2 | 33.33% |
| iobg vs Alisa | 2–1 | 66.67% |
| iobg vs Law | 0–2 | 0.00% |
| iobg vs Jun | 2–0 | 100.00% |
| iobg vs Raven | 2–0 | 100.00% |
| iobg vs Claudio | 1–0 | 100.00% |
| iobg vs Zafina | 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.