| Iona Oxide vs Reina | 14–20 | 41.18% |
| Iona Oxide vs Kazuya | 17–12 | 58.62% |
| Iona Oxide vs Jin | 12–15 | 44.44% |
| Iona Oxide vs Hwoarang | 8–15 | 34.78% |
| Iona Oxide vs King | 8–12 | 40.00% |
| Iona Oxide vs Bryan | 9–10 | 47.37% |
| Iona Oxide vs Steve | 6–13 | 31.58% |
| Iona Oxide vs Dragunov | 9–9 | 50.00% |
| Iona Oxide vs Eddy | 8–9 | 47.06% |
| Iona Oxide vs Azucena | 4–12 | 25.00% |
| Iona Oxide vs Paul | 6–9 | 40.00% |
| Iona Oxide vs Yoshimitsu | 6–9 | 40.00% |
| Iona Oxide vs Lee | 4–10 | 28.57% |
| Iona Oxide vs Law | 4–9 | 30.77% |
| Iona Oxide vs Asuka | 4–8 | 33.33% |
| Iona Oxide vs Lili | 4–5 | 44.44% |
| Iona Oxide vs Jun | 5–4 | 55.56% |
| Iona Oxide vs Nina | 4–4 | 50.00% |
| Iona Oxide vs Devil Jin | 3–4 | 42.86% |
| Iona Oxide vs Lars | 1–6 | 14.29% |
| Iona Oxide vs Victor | 5–2 | 71.43% |
| Iona Oxide vs Leo | 1–5 | 16.67% |
| Iona Oxide vs Leroy | 0–6 | 0.00% |
| Iona Oxide vs Xiaoyu | 3–2 | 60.00% |
| Iona Oxide vs Feng | 4–0 | 100.00% |
| Iona Oxide vs Shaheen | 2–2 | 50.00% |
| Iona Oxide vs Claudio | 1–2 | 33.33% |
| Iona Oxide vs Alisa | 0–2 | 0.00% |
| Iona Oxide vs Kuma | 0–2 | 0.00% |
| Iona Oxide vs Panda | 0–2 | 0.00% |
| Iona Oxide 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.