| Iron F1st vs Law | 4–1 | 80.00% |
| Iron F1st vs Reina | 3–0 | 100.00% |
| Iron F1st vs Eddy | 1–2 | 33.33% |
| Iron F1st vs Dragunov | 2–0 | 100.00% |
| Iron F1st vs Kuma | 1–0 | 100.00% |
| Iron F1st vs Leroy | 1–0 | 100.00% |
| Iron F1st vs Victor | 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.