| Ideon vs Paul | 4–8 | 33.33% |
| Ideon vs Hwoarang | 6–5 | 54.55% |
| Ideon vs Dragunov | 6–5 | 54.55% |
| Ideon vs Kazuya | 3–5 | 37.50% |
| Ideon vs Jin | 4–3 | 57.14% |
| Ideon vs Azucena | 1–5 | 16.67% |
| Ideon vs Asuka | 3–2 | 60.00% |
| Ideon vs Devil Jin | 2–2 | 50.00% |
| Ideon vs Nina | 1–3 | 25.00% |
| Ideon vs Reina | 2–2 | 50.00% |
| Ideon vs Claudio | 1–2 | 33.33% |
| Ideon vs Jun | 2–1 | 66.67% |
| Ideon vs Eddy | 3–0 | 100.00% |
| Ideon vs Law | 0–2 | 0.00% |
| Ideon vs King | 1–1 | 50.00% |
| Ideon vs Yoshimitsu | 0–2 | 0.00% |
| Ideon vs Xiaoyu | 1–1 | 50.00% |
| Ideon vs Jack-8 | 2–0 | 100.00% |
| Ideon vs Lili | 2–0 | 100.00% |
| Ideon vs Shaheen | 2–0 | 100.00% |
| Ideon vs Kuma | 1–1 | 50.00% |
| Ideon vs Panda | 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.