| Iwinouli vs Heihachi | 15–11 | 57.69% |
| Iwinouli vs Steve | 13–6 | 68.42% |
| Iwinouli vs Hwoarang | 12–6 | 66.67% |
| Iwinouli vs Miary Zo | 11–7 | 61.11% |
| Iwinouli vs Law | 8–5 | 61.54% |
| Iwinouli vs King | 7–6 | 53.85% |
| Iwinouli vs Jin | 7–4 | 63.64% |
| Iwinouli vs Armor King | 4–7 | 36.36% |
| Iwinouli vs Clive | 2–8 | 20.00% |
| Iwinouli vs Bryan | 3–6 | 33.33% |
| Iwinouli vs Asuka | 3–6 | 33.33% |
| Iwinouli vs Eddy | 3–6 | 33.33% |
| Iwinouli vs Yoshimitsu | 4–4 | 50.00% |
| Iwinouli vs Kazuya | 4–4 | 50.00% |
| Iwinouli vs Lili | 5–3 | 62.50% |
| Iwinouli vs Jun | 6–2 | 75.00% |
| Iwinouli vs Reina | 4–4 | 50.00% |
| Iwinouli vs Xiaoyu | 4–3 | 57.14% |
| Iwinouli vs Nina | 4–3 | 57.14% |
| Iwinouli vs Azucena | 3–4 | 42.86% |
| Iwinouli vs Alisa | 3–3 | 50.00% |
| Iwinouli vs Fahkumram | 2–4 | 33.33% |
| Iwinouli vs Dragunov | 1–4 | 20.00% |
| Iwinouli vs Lars | 4–1 | 80.00% |
| Iwinouli vs Lee | 4–1 | 80.00% |
| Iwinouli vs Devil Jin | 2–2 | 50.00% |
| Iwinouli vs Leo | 1–3 | 25.00% |
| Iwinouli vs Leroy | 3–1 | 75.00% |
| Iwinouli vs Anna | 2–2 | 50.00% |
| Iwinouli vs Paul | 1–2 | 33.33% |
| Iwinouli vs Claudio | 0–3 | 0.00% |
| Iwinouli vs Victor | 2–1 | 66.67% |
| Iwinouli vs Lidia | 1–2 | 33.33% |
| Iwinouli vs Jack-8 | 2–0 | 100.00% |
| Iwinouli vs Shaheen | 0–2 | 0.00% |
| Iwinouli vs Feng | 0–1 | 0.00% |
| Iwinouli vs Panda | 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.