| Iamworse vs Yoshimitsu | 11–8 | 57.89% |
| Iamworse vs Kazuya | 12–6 | 66.67% |
| Iamworse vs Bryan | 13–4 | 76.47% |
| Iamworse vs Jin | 11–5 | 68.75% |
| Iamworse vs Law | 12–3 | 80.00% |
| Iamworse vs King | 7–4 | 63.64% |
| Iamworse vs Lili | 9–2 | 81.82% |
| Iamworse vs Hwoarang | 7–2 | 77.78% |
| Iamworse vs Steve | 5–3 | 62.50% |
| Iamworse vs Kuma | 7–0 | 100.00% |
| Iamworse vs Dragunov | 6–0 | 100.00% |
| Iamworse vs Reina | 4–2 | 66.67% |
| Iamworse vs Devil Jin | 4–1 | 80.00% |
| Iamworse vs Feng | 4–0 | 100.00% |
| Iamworse vs Leo | 4–0 | 100.00% |
| Iamworse vs Lee | 4–0 | 100.00% |
| Iamworse vs Zafina | 3–1 | 75.00% |
| Iamworse vs Azucena | 2–2 | 50.00% |
| Iamworse vs Asuka | 2–1 | 66.67% |
| Iamworse vs Alisa | 1–2 | 33.33% |
| Iamworse vs Nina | 3–0 | 100.00% |
| Iamworse vs Panda | 1–2 | 33.33% |
| Iamworse vs Paul | 2–0 | 100.00% |
| Iamworse vs Xiaoyu | 2–0 | 100.00% |
| Iamworse vs Lars | 0–2 | 0.00% |
| Iamworse vs Claudio | 2–0 | 100.00% |
| Iamworse vs Victor | 2–0 | 100.00% |
| Iamworse vs Raven | 2–0 | 100.00% |
| Iamworse vs Heihachi | 2–0 | 100.00% |
| Iamworse vs Eddy | 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.