| Iootzi vs Jin | 33–37 | 47.14% |
| Iootzi vs Steve | 32–21 | 60.38% |
| Iootzi vs Kazuya | 20–29 | 40.82% |
| Iootzi vs Miary Zo | 26–22 | 54.17% |
| Iootzi vs Armor King | 17–28 | 37.78% |
| Iootzi vs King | 28–14 | 66.67% |
| Iootzi vs Bryan | 15–27 | 35.71% |
| Iootzi vs Heihachi | 26–16 | 61.90% |
| Iootzi vs Dragunov | 19–18 | 51.35% |
| Iootzi vs Lili | 18–16 | 52.94% |
| Iootzi vs Law | 13–18 | 41.94% |
| Iootzi vs Hwoarang | 12–18 | 40.00% |
| Iootzi vs Reina | 14–13 | 51.85% |
| Iootzi vs Eddy | 13–9 | 59.09% |
| Iootzi vs Victor | 9–12 | 42.86% |
| Iootzi vs Paul | 8–10 | 44.44% |
| Iootzi vs Jun | 8–9 | 47.06% |
| Iootzi vs Xiaoyu | 5–11 | 31.25% |
| Iootzi vs Lidia | 5–10 | 33.33% |
| Iootzi vs Nina | 5–8 | 38.46% |
| Iootzi vs Fahkumram | 5–8 | 38.46% |
| Iootzi vs Asuka | 5–7 | 41.67% |
| Iootzi vs Leo | 4–8 | 33.33% |
| Iootzi vs Lee | 9–3 | 75.00% |
| Iootzi vs Yoshimitsu | 3–7 | 30.00% |
| Iootzi vs Devil Jin | 5–5 | 50.00% |
| Iootzi vs Azucena | 7–3 | 70.00% |
| Iootzi vs Raven | 1–8 | 11.11% |
| Iootzi vs Feng | 2–6 | 25.00% |
| Iootzi vs Lars | 2–6 | 25.00% |
| Iootzi vs Claudio | 5–3 | 62.50% |
| Iootzi vs Alisa | 6–0 | 100.00% |
| Iootzi vs Clive | 2–4 | 33.33% |
| Iootzi vs Jack-8 | 2–2 | 50.00% |
| Iootzi vs Zafina | 2–2 | 50.00% |
| Iootzi vs Anna | 2–2 | 50.00% |
| Iootzi vs Kuma | 2–1 | 66.67% |
| Iootzi vs Panda | 1–2 | 33.33% |
| Iootzi vs Leroy | 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.