| IowoI vs Asuka | 12–15 | 44.44% |
| IowoI vs Bryan | 9–14 | 39.13% |
| IowoI vs Kazuya | 9–12 | 42.86% |
| IowoI vs Claudio | 9–12 | 42.86% |
| IowoI vs Jin | 8–10 | 44.44% |
| IowoI vs Lili | 6–11 | 35.29% |
| IowoI vs Dragunov | 6–11 | 35.29% |
| IowoI vs Hwoarang | 6–10 | 37.50% |
| IowoI vs Heihachi | 7–9 | 43.75% |
| IowoI vs Steve | 5–6 | 45.45% |
| IowoI vs Reina | 4–7 | 36.36% |
| IowoI vs Paul | 4–6 | 40.00% |
| IowoI vs Devil Jin | 2–8 | 20.00% |
| IowoI vs Jun | 7–3 | 70.00% |
| IowoI vs Law | 2–7 | 22.22% |
| IowoI vs Yoshimitsu | 6–3 | 66.67% |
| IowoI vs Kuma | 0–7 | 0.00% |
| IowoI vs Victor | 2–5 | 28.57% |
| IowoI vs Fahkumram | 2–5 | 28.57% |
| IowoI vs King | 2–4 | 33.33% |
| IowoI vs Jack-8 | 1–5 | 16.67% |
| IowoI vs Nina | 1–5 | 16.67% |
| IowoI vs Alisa | 2–2 | 50.00% |
| IowoI vs Eddy | 1–3 | 25.00% |
| IowoI vs Clive | 0–4 | 0.00% |
| IowoI vs Leo | 0–3 | 0.00% |
| IowoI vs Leroy | 0–3 | 0.00% |
| IowoI vs Xiaoyu | 0–2 | 0.00% |
| IowoI vs Feng | 0–2 | 0.00% |
| IowoI vs Lars | 1–1 | 50.00% |
| IowoI vs Lee | 0–2 | 0.00% |
| IowoI vs Zafina | 2–0 | 100.00% |
| IowoI vs Azucena | 1–1 | 50.00% |
| IowoI vs Lidia | 0–2 | 0.00% |
| IowoI vs Raven | 0–1 | 0.00% |
| IowoI vs Anna | 0–1 | 0.00% |
| IowoI vs Armor King | 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.