| 0Ion vs Hwoarang | 14–17 | 45.16% |
| 0Ion vs King | 13–17 | 43.33% |
| 0Ion vs Paul | 15–10 | 60.00% |
| 0Ion vs Kazuya | 14–10 | 58.33% |
| 0Ion vs Lili | 12–9 | 57.14% |
| 0Ion vs Steve | 10–7 | 58.82% |
| 0Ion vs Dragunov | 3–14 | 17.65% |
| 0Ion vs Alisa | 9–8 | 52.94% |
| 0Ion vs Lidia | 7–10 | 41.18% |
| 0Ion vs Clive | 4–13 | 23.53% |
| 0Ion vs Reina | 6–10 | 37.50% |
| 0Ion vs Yoshimitsu | 8–7 | 53.33% |
| 0Ion vs Victor | 6–9 | 40.00% |
| 0Ion vs Bryan | 3–11 | 21.43% |
| 0Ion vs Jin | 2–11 | 15.38% |
| 0Ion vs Law | 5–7 | 41.67% |
| 0Ion vs Jun | 5–5 | 50.00% |
| 0Ion vs Heihachi | 2–8 | 20.00% |
| 0Ion vs Xiaoyu | 5–4 | 55.56% |
| 0Ion vs Azucena | 4–5 | 44.44% |
| 0Ion vs Jack-8 | 4–3 | 57.14% |
| 0Ion vs Leroy | 1–6 | 14.29% |
| 0Ion vs Raven | 3–4 | 42.86% |
| 0Ion vs Eddy | 4–3 | 57.14% |
| 0Ion vs Nina | 1–5 | 16.67% |
| 0Ion vs Asuka | 2–3 | 40.00% |
| 0Ion vs Devil Jin | 3–2 | 60.00% |
| 0Ion vs Lars | 4–1 | 80.00% |
| 0Ion vs Anna | 4–1 | 80.00% |
| 0Ion vs Fahkumram | 4–1 | 80.00% |
| 0Ion vs Leo | 2–2 | 50.00% |
| 0Ion vs Armor King | 1–3 | 25.00% |
| 0Ion vs Feng | 0–3 | 0.00% |
| 0Ion vs Kuma | 0–3 | 0.00% |
| 0Ion vs Claudio | 2–0 | 100.00% |
| 0Ion vs Panda | 0–2 | 0.00% |
| 0Ion 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.