| martillo4 vs Reina | 13–12 | 52.00% |
| martillo4 vs Paul | 6–11 | 35.29% |
| martillo4 vs Nina | 4–12 | 25.00% |
| martillo4 vs Leo | 6–6 | 50.00% |
| martillo4 vs Kazuya | 2–9 | 18.18% |
| martillo4 vs Hwoarang | 5–4 | 55.56% |
| martillo4 vs Jin | 2–7 | 22.22% |
| martillo4 vs Victor | 5–4 | 55.56% |
| martillo4 vs King | 3–5 | 37.50% |
| martillo4 vs Azucena | 2–6 | 25.00% |
| martillo4 vs Dragunov | 3–4 | 42.86% |
| martillo4 vs Eddy | 1–4 | 20.00% |
| martillo4 vs Steve | 2–2 | 50.00% |
| martillo4 vs Lee | 0–4 | 0.00% |
| martillo4 vs Zafina | 3–0–1 | 100.00% |
| martillo4 vs Law | 2–1 | 66.67% |
| martillo4 vs Yoshimitsu | 2–1 | 66.67% |
| martillo4 vs Lars | 0–2 | 0.00% |
| martillo4 vs Panda | 0–2 | 0.00% |
| martillo4 vs Asuka | 1–0 | 100.00% |
| martillo4 vs Devil Jin | 1–0 | 100.00% |
| martillo4 vs Claudio | 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.