| IonMan9 vs Jin | 7–5 | 58.33% |
| IonMan9 vs Miary Zo | 6–4 | 60.00% |
| IonMan9 vs Law | 4–5 | 44.44% |
| IonMan9 vs Yoshimitsu | 9–0 | 100.00% |
| IonMan9 vs Armor King | 4–4 | 50.00% |
| IonMan9 vs Reina | 6–1 | 85.71% |
| IonMan9 vs King | 2–4 | 33.33% |
| IonMan9 vs Hwoarang | 4–1 | 80.00% |
| IonMan9 vs Asuka | 4–1 | 80.00% |
| IonMan9 vs Azucena | 4–1 | 80.00% |
| IonMan9 vs Eddy | 4–1 | 80.00% |
| IonMan9 vs Jun | 2–2 | 50.00% |
| IonMan9 vs Victor | 2–2 | 50.00% |
| IonMan9 vs Steve | 1–2 | 33.33% |
| IonMan9 vs Devil Jin | 3–0 | 100.00% |
| IonMan9 vs Dragunov | 0–3 | 0.00% |
| IonMan9 vs Lars | 1–2 | 33.33% |
| IonMan9 vs Kuma | 2–1 | 66.67% |
| IonMan9 vs Fahkumram | 2–1 | 66.67% |
| IonMan9 vs Paul | 2–0 | 100.00% |
| IonMan9 vs Kazuya | 2–0 | 100.00% |
| IonMan9 vs Leo | 2–0 | 100.00% |
| IonMan9 vs Claudio | 2–0 | 100.00% |
| IonMan9 vs Shaheen | 0–2 | 0.00% |
| IonMan9 vs Panda | 2–0 | 100.00% |
| IonMan9 vs Heihachi | 2–0 | 100.00% |
| IonMan9 vs Lili | 0–1 | 0.00% |
| IonMan9 vs Leroy | 1–0 | 100.00% |
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.